Home / 7,538.38-11,305.68-3,587.20

Finding the Fourth Proportional to 7,538.38, 11,305.68 and 3,587.20

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Solution

The fourth proportional to 7,538.38, 11,305.68 and 3,587.20 is: 5,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.38 : 11,305.68 = 3,587.20 : x
  2. Step 2: Convert to fraction form
    7,538.38/11,305.68 = 3,587.20/x
  3. Step 3: Cross multiply
    7,538.38x = 11,305.68 × 3,587.20
  4. Step 4: Simplify right side
    7,538.38x = 40,555,735.30
  5. Step 5: Solve for x
    x = 40,555,735.30/7,538.38
  6. Step 6: Final answer
    x = 5,379.90

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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.