Home / 2,478.62-3,718.74-1,179.92

Finding the Fourth Proportional to 2,478.62, 3,718.74 and 1,179.92

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Solution

The fourth proportional to 2,478.62, 3,718.74 and 1,179.92 is: 1,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.62 : 3,718.74 = 1,179.92 : x
  2. Step 2: Convert to fraction form
    2,478.62/3,718.74 = 1,179.92/x
  3. Step 3: Cross multiply
    2,478.62x = 3,718.74 × 1,179.92
  4. Step 4: Simplify right side
    2,478.62x = 4,387,815.70
  5. Step 5: Solve for x
    x = 4,387,815.70/2,478.62
  6. Step 6: Final answer
    x = 1,770.27

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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.