Home / 2,449.76-3,380.64-1,402.08

Finding the Fourth Proportional to 2,449.76, 3,380.64 and 1,402.08

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Solution

The fourth proportional to 2,449.76, 3,380.64 and 1,402.08 is: 1,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.76 : 3,380.64 = 1,402.08 : x
  2. Step 2: Convert to fraction form
    2,449.76/3,380.64 = 1,402.08/x
  3. Step 3: Cross multiply
    2,449.76x = 3,380.64 × 1,402.08
  4. Step 4: Simplify right side
    2,449.76x = 4,739,927.73
  5. Step 5: Solve for x
    x = 4,739,927.73/2,449.76
  6. Step 6: Final answer
    x = 1,934.85

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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.