Home / 3,142.52-4,713.78-1,292.34

Finding the Fourth Proportional to 3,142.52, 4,713.78 and 1,292.34

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Solution

The fourth proportional to 3,142.52, 4,713.78 and 1,292.34 is: 1,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.52 : 4,713.78 = 1,292.34 : x
  2. Step 2: Convert to fraction form
    3,142.52/4,713.78 = 1,292.34/x
  3. Step 3: Cross multiply
    3,142.52x = 4,713.78 × 1,292.34
  4. Step 4: Simplify right side
    3,142.52x = 6,091,806.45
  5. Step 5: Solve for x
    x = 6,091,806.45/3,142.52
  6. Step 6: Final answer
    x = 1,938.51

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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.