Home / 7,480.50-11,221.20-2,286.42

Finding the Fourth Proportional to 7,480.50, 11,221.20 and 2,286.42

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Solution

The fourth proportional to 7,480.50, 11,221.20 and 2,286.42 is: 3,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.50 : 11,221.20 = 2,286.42 : x
  2. Step 2: Convert to fraction form
    7,480.50/11,221.20 = 2,286.42/x
  3. Step 3: Cross multiply
    7,480.50x = 11,221.20 × 2,286.42
  4. Step 4: Simplify right side
    7,480.50x = 25,656,376.10
  5. Step 5: Solve for x
    x = 25,656,376.10/7,480.50
  6. Step 6: Final answer
    x = 3,429.77

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Double scale
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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.