Home / 5,139.08-7,092.30-3,877.92

Finding the Fourth Proportional to 5,139.08, 7,092.30 and 3,877.92

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Solution

The fourth proportional to 5,139.08, 7,092.30 and 3,877.92 is: 5,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.08 : 7,092.30 = 3,877.92 : x
  2. Step 2: Convert to fraction form
    5,139.08/7,092.30 = 3,877.92/x
  3. Step 3: Cross multiply
    5,139.08x = 7,092.30 × 3,877.92
  4. Step 4: Simplify right side
    5,139.08x = 27,503,372.02
  5. Step 5: Solve for x
    x = 27,503,372.02/5,139.08
  6. Step 6: Final answer
    x = 5,351.81

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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.