Home / 3,519.66-5,280.39-2,931.42

Finding the Fourth Proportional to 3,519.66, 5,280.39 and 2,931.42

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Solution

The fourth proportional to 3,519.66, 5,280.39 and 2,931.42 is: 4,397.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.66 : 5,280.39 = 2,931.42 : x
  2. Step 2: Convert to fraction form
    3,519.66/5,280.39 = 2,931.42/x
  3. Step 3: Cross multiply
    3,519.66x = 5,280.39 × 2,931.42
  4. Step 4: Simplify right side
    3,519.66x = 15,479,040.85
  5. Step 5: Solve for x
    x = 15,479,040.85/3,519.66
  6. Step 6: Final answer
    x = 4,397.88

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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.