Home / 5,132.71-7,699.88-2,211.85

Finding the Fourth Proportional to 5,132.71, 7,699.88 and 2,211.85

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Solution

The fourth proportional to 5,132.71, 7,699.88 and 2,211.85 is: 3,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.71 : 7,699.88 = 2,211.85 : x
  2. Step 2: Convert to fraction form
    5,132.71/7,699.88 = 2,211.85/x
  3. Step 3: Cross multiply
    5,132.71x = 7,699.88 × 2,211.85
  4. Step 4: Simplify right side
    5,132.71x = 17,030,979.58
  5. Step 5: Solve for x
    x = 17,030,979.58/5,132.71
  6. Step 6: Final answer
    x = 3,318.13

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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.