Home / 1,254.17-1,732.10-1,116.74

Finding the Fourth Proportional to 1,254.17, 1,732.10 and 1,116.74

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Solution

The fourth proportional to 1,254.17, 1,732.10 and 1,116.74 is: 1,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.17 : 1,732.10 = 1,116.74 : x
  2. Step 2: Convert to fraction form
    1,254.17/1,732.10 = 1,116.74/x
  3. Step 3: Cross multiply
    1,254.17x = 1,732.10 × 1,116.74
  4. Step 4: Simplify right side
    1,254.17x = 1,934,304.10
  5. Step 5: Solve for x
    x = 1,934,304.10/1,254.17
  6. Step 6: Final answer
    x = 1,542.30

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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.