Home / 5,287.31-7,930.51-2,000.43

Finding the Fourth Proportional to 5,287.31, 7,930.51 and 2,000.43

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Solution

The fourth proportional to 5,287.31, 7,930.51 and 2,000.43 is: 3,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.31 : 7,930.51 = 2,000.43 : x
  2. Step 2: Convert to fraction form
    5,287.31/7,930.51 = 2,000.43/x
  3. Step 3: Cross multiply
    5,287.31x = 7,930.51 × 2,000.43
  4. Step 4: Simplify right side
    5,287.31x = 15,864,425.12
  5. Step 5: Solve for x
    x = 15,864,425.12/5,287.31
  6. Step 6: Final answer
    x = 3,000.47

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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.