Home / 7,721.08-11,581.62-3,103

Finding the Fourth Proportional to 7,721.08, 11,581.62 and 3,103

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Solution

The fourth proportional to 7,721.08, 11,581.62 and 3,103 is: 4,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.08 : 11,581.62 = 3,103 : x
  2. Step 2: Convert to fraction form
    7,721.08/11,581.62 = 3,103/x
  3. Step 3: Cross multiply
    7,721.08x = 11,581.62 × 3,103
  4. Step 4: Simplify right side
    7,721.08x = 35,937,766.86
  5. Step 5: Solve for x
    x = 35,937,766.86/7,721.08
  6. Step 6: Final answer
    x = 4,654.50

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Half scale
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Double scale
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Similar ratio
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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.