Home / 3,913.93-5,397.11-3,517.20

Finding the Fourth Proportional to 3,913.93, 5,397.11 and 3,517.20

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Solution

The fourth proportional to 3,913.93, 5,397.11 and 3,517.20 is: 4,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.93 : 5,397.11 = 3,517.20 : x
  2. Step 2: Convert to fraction form
    3,913.93/5,397.11 = 3,517.20/x
  3. Step 3: Cross multiply
    3,913.93x = 5,397.11 × 3,517.20
  4. Step 4: Simplify right side
    3,913.93x = 18,982,685.82
  5. Step 5: Solve for x
    x = 18,982,685.82/3,913.93
  6. Step 6: Final answer
    x = 4,850.03

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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.