Home / 3,860.52-5,321.92-2,531.92

Finding the Fourth Proportional to 3,860.52, 5,321.92 and 2,531.92

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Solution

The fourth proportional to 3,860.52, 5,321.92 and 2,531.92 is: 3,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.52 : 5,321.92 = 2,531.92 : x
  2. Step 2: Convert to fraction form
    3,860.52/5,321.92 = 2,531.92/x
  3. Step 3: Cross multiply
    3,860.52x = 5,321.92 × 2,531.92
  4. Step 4: Simplify right side
    3,860.52x = 13,474,675.69
  5. Step 5: Solve for x
    x = 13,474,675.69/3,860.52
  6. Step 6: Final answer
    x = 3,490.38

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1.5x scale

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.