Home / 3,966.12-5,470.68-3,125.52

Finding the Fourth Proportional to 3,966.12, 5,470.68 and 3,125.52

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Solution

The fourth proportional to 3,966.12, 5,470.68 and 3,125.52 is: 4,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.12 : 5,470.68 = 3,125.52 : x
  2. Step 2: Convert to fraction form
    3,966.12/5,470.68 = 3,125.52/x
  3. Step 3: Cross multiply
    3,966.12x = 5,470.68 × 3,125.52
  4. Step 4: Simplify right side
    3,966.12x = 17,098,719.75
  5. Step 5: Solve for x
    x = 17,098,719.75/3,966.12
  6. Step 6: Final answer
    x = 4,311.20

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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.