Home / 4,128.04-5,689.38-3,287.08

Finding the Fourth Proportional to 4,128.04, 5,689.38 and 3,287.08

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Solution

The fourth proportional to 4,128.04, 5,689.38 and 3,287.08 is: 4,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.04 : 5,689.38 = 3,287.08 : x
  2. Step 2: Convert to fraction form
    4,128.04/5,689.38 = 3,287.08/x
  3. Step 3: Cross multiply
    4,128.04x = 5,689.38 × 3,287.08
  4. Step 4: Simplify right side
    4,128.04x = 18,701,447.21
  5. Step 5: Solve for x
    x = 18,701,447.21/4,128.04
  6. Step 6: Final answer
    x = 4,530.35

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Find fourth proportional to 2,064.02, 2,844.69 and 1,643.54
Half scale
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Double scale
Find fourth proportional to 4,129.04, 5,690.76 and 3,288.08
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.