Home / 3,876.39-5,814.59-1,103.12

Finding the Fourth Proportional to 3,876.39, 5,814.59 and 1,103.12

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Solution

The fourth proportional to 3,876.39, 5,814.59 and 1,103.12 is: 1,654.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.39 : 5,814.59 = 1,103.12 : x
  2. Step 2: Convert to fraction form
    3,876.39/5,814.59 = 1,103.12/x
  3. Step 3: Cross multiply
    3,876.39x = 5,814.59 × 1,103.12
  4. Step 4: Simplify right side
    3,876.39x = 6,414,177.74
  5. Step 5: Solve for x
    x = 6,414,177.74/3,876.39
  6. Step 6: Final answer
    x = 1,654.68

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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.