Home / 3,946.38-5,445.95-2,177.97

Finding the Fourth Proportional to 3,946.38, 5,445.95 and 2,177.97

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Solution

The fourth proportional to 3,946.38, 5,445.95 and 2,177.97 is: 3,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.38 : 5,445.95 = 2,177.97 : x
  2. Step 2: Convert to fraction form
    3,946.38/5,445.95 = 2,177.97/x
  3. Step 3: Cross multiply
    3,946.38x = 5,445.95 × 2,177.97
  4. Step 4: Simplify right side
    3,946.38x = 11,861,104.83
  5. Step 5: Solve for x
    x = 11,861,104.83/3,946.38
  6. Step 6: Final answer
    x = 3,005.57

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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.