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Finding the Fourth Proportional to 3,471.40, 5,207.10 and 1,162.90

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Solution

The fourth proportional to 3,471.40, 5,207.10 and 1,162.90 is: 1,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.40 : 5,207.10 = 1,162.90 : x
  2. Step 2: Convert to fraction form
    3,471.40/5,207.10 = 1,162.90/x
  3. Step 3: Cross multiply
    3,471.40x = 5,207.10 × 1,162.90
  4. Step 4: Simplify right side
    3,471.40x = 6,055,336.59
  5. Step 5: Solve for x
    x = 6,055,336.59/3,471.40
  6. Step 6: Final answer
    x = 1,744.35

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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.