Home / 5,589.38-7,710.60-3,910.16

Finding the Fourth Proportional to 5,589.38, 7,710.60 and 3,910.16

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Solution

The fourth proportional to 5,589.38, 7,710.60 and 3,910.16 is: 5,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.38 : 7,710.60 = 3,910.16 : x
  2. Step 2: Convert to fraction form
    5,589.38/7,710.60 = 3,910.16/x
  3. Step 3: Cross multiply
    5,589.38x = 7,710.60 × 3,910.16
  4. Step 4: Simplify right side
    5,589.38x = 30,149,679.70
  5. Step 5: Solve for x
    x = 30,149,679.70/5,589.38
  6. Step 6: Final answer
    x = 5,394.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.