Home / 5,287.31-7,934.39-2,517.11

Finding the Fourth Proportional to 5,287.31, 7,934.39 and 2,517.11

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Solution

The fourth proportional to 5,287.31, 7,934.39 and 2,517.11 is: 3,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.31 : 7,934.39 = 2,517.11 : x
  2. Step 2: Convert to fraction form
    5,287.31/7,934.39 = 2,517.11/x
  3. Step 3: Cross multiply
    5,287.31x = 7,934.39 × 2,517.11
  4. Step 4: Simplify right side
    5,287.31x = 19,971,732.41
  5. Step 5: Solve for x
    x = 19,971,732.41/5,287.31
  6. Step 6: Final answer
    x = 3,777.30

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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.