Home / 3,148.80-4,720.96-2,107.52

Finding the Fourth Proportional to 3,148.80, 4,720.96 and 2,107.52

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Solution

The fourth proportional to 3,148.80, 4,720.96 and 2,107.52 is: 3,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.80 : 4,720.96 = 2,107.52 : x
  2. Step 2: Convert to fraction form
    3,148.80/4,720.96 = 2,107.52/x
  3. Step 3: Cross multiply
    3,148.80x = 4,720.96 × 2,107.52
  4. Step 4: Simplify right side
    3,148.80x = 9,949,517.62
  5. Step 5: Solve for x
    x = 9,949,517.62/3,148.80
  6. Step 6: Final answer
    x = 3,159.78

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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.