Home / 7,380.92-11,071.38-2,187.20

Finding the Fourth Proportional to 7,380.92, 11,071.38 and 2,187.20

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Solution

The fourth proportional to 7,380.92, 11,071.38 and 2,187.20 is: 3,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.92 : 11,071.38 = 2,187.20 : x
  2. Step 2: Convert to fraction form
    7,380.92/11,071.38 = 2,187.20/x
  3. Step 3: Cross multiply
    7,380.92x = 11,071.38 × 2,187.20
  4. Step 4: Simplify right side
    7,380.92x = 24,215,358.22
  5. Step 5: Solve for x
    x = 24,215,358.22/7,380.92
  6. Step 6: Final answer
    x = 3,280.80

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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.