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Finding the Fourth Proportional to 7,501.30, 11,251.95 and 4,890.10

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Solution

The fourth proportional to 7,501.30, 11,251.95 and 4,890.10 is: 7,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.30 : 11,251.95 = 4,890.10 : x
  2. Step 2: Convert to fraction form
    7,501.30/11,251.95 = 4,890.10/x
  3. Step 3: Cross multiply
    7,501.30x = 11,251.95 × 4,890.10
  4. Step 4: Simplify right side
    7,501.30x = 55,023,160.70
  5. Step 5: Solve for x
    x = 55,023,160.70/7,501.30
  6. Step 6: Final answer
    x = 7,335.15

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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.