Home / 3,876.32-5,814.12-1,103.24

Finding the Fourth Proportional to 3,876.32, 5,814.12 and 1,103.24

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Solution

The fourth proportional to 3,876.32, 5,814.12 and 1,103.24 is: 1,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.32 : 5,814.12 = 1,103.24 : x
  2. Step 2: Convert to fraction form
    3,876.32/5,814.12 = 1,103.24/x
  3. Step 3: Cross multiply
    3,876.32x = 5,814.12 × 1,103.24
  4. Step 4: Simplify right side
    3,876.32x = 6,414,369.75
  5. Step 5: Solve for x
    x = 6,414,369.75/3,876.32
  6. Step 6: Final answer
    x = 1,654.76

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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.