Home / 3,891.48-5,344.14-3,331.98

Finding the Fourth Proportional to 3,891.48, 5,344.14 and 3,331.98

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Solution

The fourth proportional to 3,891.48, 5,344.14 and 3,331.98 is: 4,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.48 : 5,344.14 = 3,331.98 : x
  2. Step 2: Convert to fraction form
    3,891.48/5,344.14 = 3,331.98/x
  3. Step 3: Cross multiply
    3,891.48x = 5,344.14 × 3,331.98
  4. Step 4: Simplify right side
    3,891.48x = 17,806,567.60
  5. Step 5: Solve for x
    x = 17,806,567.60/3,891.48
  6. Step 6: Final answer
    x = 4,575.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.