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Finding the Fourth Proportional to 3,862.35, 5,793.53 and 1,397.12

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Solution

The fourth proportional to 3,862.35, 5,793.53 and 1,397.12 is: 2,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.35 : 5,793.53 = 1,397.12 : x
  2. Step 2: Convert to fraction form
    3,862.35/5,793.53 = 1,397.12/x
  3. Step 3: Cross multiply
    3,862.35x = 5,793.53 × 1,397.12
  4. Step 4: Simplify right side
    3,862.35x = 8,094,256.63
  5. Step 5: Solve for x
    x = 8,094,256.63/3,862.35
  6. Step 6: Final answer
    x = 2,095.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.