Home / 3,397.21-5,092.65-1,318.57

Finding the Fourth Proportional to 3,397.21, 5,092.65 and 1,318.57

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Solution

The fourth proportional to 3,397.21, 5,092.65 and 1,318.57 is: 1,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.21 : 5,092.65 = 1,318.57 : x
  2. Step 2: Convert to fraction form
    3,397.21/5,092.65 = 1,318.57/x
  3. Step 3: Cross multiply
    3,397.21x = 5,092.65 × 1,318.57
  4. Step 4: Simplify right side
    3,397.21x = 6,715,002.78
  5. Step 5: Solve for x
    x = 6,715,002.78/3,397.21
  6. Step 6: Final answer
    x = 1,976.62

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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.