Home / 3,897.61-5,377.17-2,480.93

Finding the Fourth Proportional to 3,897.61, 5,377.17 and 2,480.93

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Solution

The fourth proportional to 3,897.61, 5,377.17 and 2,480.93 is: 3,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.61 : 5,377.17 = 2,480.93 : x
  2. Step 2: Convert to fraction form
    3,897.61/5,377.17 = 2,480.93/x
  3. Step 3: Cross multiply
    3,897.61x = 5,377.17 × 2,480.93
  4. Step 4: Simplify right side
    3,897.61x = 13,340,369.96
  5. Step 5: Solve for x
    x = 13,340,369.96/3,897.61
  6. Step 6: Final answer
    x = 3,422.71

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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.