Home / 3,147.30-4,716.29-2,103.71

Finding the Fourth Proportional to 3,147.30, 4,716.29 and 2,103.71

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Solution

The fourth proportional to 3,147.30, 4,716.29 and 2,103.71 is: 3,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.30 : 4,716.29 = 2,103.71 : x
  2. Step 2: Convert to fraction form
    3,147.30/4,716.29 = 2,103.71/x
  3. Step 3: Cross multiply
    3,147.30x = 4,716.29 × 2,103.71
  4. Step 4: Simplify right side
    3,147.30x = 9,921,706.44
  5. Step 5: Solve for x
    x = 9,921,706.44/3,147.30
  6. Step 6: Final answer
    x = 3,152.45

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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.