Home / 7,545.78-11,318.46-1,998.96

Finding the Fourth Proportional to 7,545.78, 11,318.46 and 1,998.96

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Solution

The fourth proportional to 7,545.78, 11,318.46 and 1,998.96 is: 2,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.78 : 11,318.46 = 1,998.96 : x
  2. Step 2: Convert to fraction form
    7,545.78/11,318.46 = 1,998.96/x
  3. Step 3: Cross multiply
    7,545.78x = 11,318.46 × 1,998.96
  4. Step 4: Simplify right side
    7,545.78x = 22,625,148.80
  5. Step 5: Solve for x
    x = 22,625,148.80/7,545.78
  6. Step 6: Final answer
    x = 2,998.38

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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.