Home / 3,914.59-5,872-1,141.20

Finding the Fourth Proportional to 3,914.59, 5,872 and 1,141.20

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Solution

The fourth proportional to 3,914.59, 5,872 and 1,141.20 is: 1,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.59 : 5,872 = 1,141.20 : x
  2. Step 2: Convert to fraction form
    3,914.59/5,872 = 1,141.20/x
  3. Step 3: Cross multiply
    3,914.59x = 5,872 × 1,141.20
  4. Step 4: Simplify right side
    3,914.59x = 6,701,126.40
  5. Step 5: Solve for x
    x = 6,701,126.40/3,914.59
  6. Step 6: Final answer
    x = 1,711.83

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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.