Home / 4,272.12-6,407.40-1,152.18

Finding the Fourth Proportional to 4,272.12, 6,407.40 and 1,152.18

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Solution

The fourth proportional to 4,272.12, 6,407.40 and 1,152.18 is: 1,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.12 : 6,407.40 = 1,152.18 : x
  2. Step 2: Convert to fraction form
    4,272.12/6,407.40 = 1,152.18/x
  3. Step 3: Cross multiply
    4,272.12x = 6,407.40 × 1,152.18
  4. Step 4: Simplify right side
    4,272.12x = 7,382,478.13
  5. Step 5: Solve for x
    x = 7,382,478.13/4,272.12
  6. Step 6: Final answer
    x = 1,728.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.