Home / 3,405.02-4,703.55-2,668.28

Finding the Fourth Proportional to 3,405.02, 4,703.55 and 2,668.28

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Solution

The fourth proportional to 3,405.02, 4,703.55 and 2,668.28 is: 3,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.02 : 4,703.55 = 2,668.28 : x
  2. Step 2: Convert to fraction form
    3,405.02/4,703.55 = 2,668.28/x
  3. Step 3: Cross multiply
    3,405.02x = 4,703.55 × 2,668.28
  4. Step 4: Simplify right side
    3,405.02x = 12,550,388.39
  5. Step 5: Solve for x
    x = 12,550,388.39/3,405.02
  6. Step 6: Final answer
    x = 3,685.85

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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.