Home / 5,311.38-7,966.76-2,539.97

Finding the Fourth Proportional to 5,311.38, 7,966.76 and 2,539.97

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Solution

The fourth proportional to 5,311.38, 7,966.76 and 2,539.97 is: 3,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.38 : 7,966.76 = 2,539.97 : x
  2. Step 2: Convert to fraction form
    5,311.38/7,966.76 = 2,539.97/x
  3. Step 3: Cross multiply
    5,311.38x = 7,966.76 × 2,539.97
  4. Step 4: Simplify right side
    5,311.38x = 20,235,331.40
  5. Step 5: Solve for x
    x = 20,235,331.40/5,311.38
  6. Step 6: Final answer
    x = 3,809.81

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1.5x scale

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.