Home / 5,306.88-7,958.40-2,387.28

Finding the Fourth Proportional to 5,306.88, 7,958.40 and 2,387.28

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Solution

The fourth proportional to 5,306.88, 7,958.40 and 2,387.28 is: 3,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.88 : 7,958.40 = 2,387.28 : x
  2. Step 2: Convert to fraction form
    5,306.88/7,958.40 = 2,387.28/x
  3. Step 3: Cross multiply
    5,306.88x = 7,958.40 × 2,387.28
  4. Step 4: Simplify right side
    5,306.88x = 18,998,929.15
  5. Step 5: Solve for x
    x = 18,998,929.15/5,306.88
  6. Step 6: Final answer
    x = 3,580.06

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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.