Home / 3,387.57-5,080.02-1,306.43

Finding the Fourth Proportional to 3,387.57, 5,080.02 and 1,306.43

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Solution

The fourth proportional to 3,387.57, 5,080.02 and 1,306.43 is: 1,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.57 : 5,080.02 = 1,306.43 : x
  2. Step 2: Convert to fraction form
    3,387.57/5,080.02 = 1,306.43/x
  3. Step 3: Cross multiply
    3,387.57x = 5,080.02 × 1,306.43
  4. Step 4: Simplify right side
    3,387.57x = 6,636,690.53
  5. Step 5: Solve for x
    x = 6,636,690.53/3,387.57
  6. Step 6: Final answer
    x = 1,959.13

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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.