Home / 3,860.52-5,321.91-2,531.91

Finding the Fourth Proportional to 3,860.52, 5,321.91 and 2,531.91

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Solution

The fourth proportional to 3,860.52, 5,321.91 and 2,531.91 is: 3,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.52 : 5,321.91 = 2,531.91 : x
  2. Step 2: Convert to fraction form
    3,860.52/5,321.91 = 2,531.91/x
  3. Step 3: Cross multiply
    3,860.52x = 5,321.91 × 2,531.91
  4. Step 4: Simplify right side
    3,860.52x = 13,474,597.15
  5. Step 5: Solve for x
    x = 13,474,597.15/3,860.52
  6. Step 6: Final answer
    x = 3,490.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.