Home / 2,319.20-3,478.92-1,132.88

Finding the Fourth Proportional to 2,319.20, 3,478.92 and 1,132.88

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Solution

The fourth proportional to 2,319.20, 3,478.92 and 1,132.88 is: 1,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.20 : 3,478.92 = 1,132.88 : x
  2. Step 2: Convert to fraction form
    2,319.20/3,478.92 = 1,132.88/x
  3. Step 3: Cross multiply
    2,319.20x = 3,478.92 × 1,132.88
  4. Step 4: Simplify right side
    2,319.20x = 3,941,198.89
  5. Step 5: Solve for x
    x = 3,941,198.89/2,319.20
  6. Step 6: Final answer
    x = 1,699.38

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1.5x scale

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.