Home / 4,691.28-6,474.42-3,119.88

Finding the Fourth Proportional to 4,691.28, 6,474.42 and 3,119.88

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Solution

The fourth proportional to 4,691.28, 6,474.42 and 3,119.88 is: 4,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.28 : 6,474.42 = 3,119.88 : x
  2. Step 2: Convert to fraction form
    4,691.28/6,474.42 = 3,119.88/x
  3. Step 3: Cross multiply
    4,691.28x = 6,474.42 × 3,119.88
  4. Step 4: Simplify right side
    4,691.28x = 20,199,413.47
  5. Step 5: Solve for x
    x = 20,199,413.47/4,691.28
  6. Step 6: Final answer
    x = 4,305.74

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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.