Home / 3,778.40-5,656.92-2,543.36

Finding the Fourth Proportional to 3,778.40, 5,656.92 and 2,543.36

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Solution

The fourth proportional to 3,778.40, 5,656.92 and 2,543.36 is: 3,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.40 : 5,656.92 = 2,543.36 : x
  2. Step 2: Convert to fraction form
    3,778.40/5,656.92 = 2,543.36/x
  3. Step 3: Cross multiply
    3,778.40x = 5,656.92 × 2,543.36
  4. Step 4: Simplify right side
    3,778.40x = 14,387,584.05
  5. Step 5: Solve for x
    x = 14,387,584.05/3,778.40
  6. Step 6: Final answer
    x = 3,807.85

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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.