Home / 2,545.50-3,818.25-814.26

Finding the Fourth Proportional to 2,545.50, 3,818.25 and 814.26

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Solution

The fourth proportional to 2,545.50, 3,818.25 and 814.26 is: 1,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.50 : 3,818.25 = 814.26 : x
  2. Step 2: Convert to fraction form
    2,545.50/3,818.25 = 814.26/x
  3. Step 3: Cross multiply
    2,545.50x = 3,818.25 × 814.26
  4. Step 4: Simplify right side
    2,545.50x = 3,109,048.25
  5. Step 5: Solve for x
    x = 3,109,048.25/2,545.50
  6. Step 6: Final answer
    x = 1,221.39

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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.