Home / 3,848.80-5,306.97-3,139.87

Finding the Fourth Proportional to 3,848.80, 5,306.97 and 3,139.87

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Solution

The fourth proportional to 3,848.80, 5,306.97 and 3,139.87 is: 4,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.80 : 5,306.97 = 3,139.87 : x
  2. Step 2: Convert to fraction form
    3,848.80/5,306.97 = 3,139.87/x
  3. Step 3: Cross multiply
    3,848.80x = 5,306.97 × 3,139.87
  4. Step 4: Simplify right side
    3,848.80x = 16,663,195.89
  5. Step 5: Solve for x
    x = 16,663,195.89/3,848.80
  6. Step 6: Final answer
    x = 4,329.45

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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.