Home / 3,612.30-5,414.40-1,660.50

Finding the Fourth Proportional to 3,612.30, 5,414.40 and 1,660.50

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Solution

The fourth proportional to 3,612.30, 5,414.40 and 1,660.50 is: 2,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.30 : 5,414.40 = 1,660.50 : x
  2. Step 2: Convert to fraction form
    3,612.30/5,414.40 = 1,660.50/x
  3. Step 3: Cross multiply
    3,612.30x = 5,414.40 × 1,660.50
  4. Step 4: Simplify right side
    3,612.30x = 8,990,611.20
  5. Step 5: Solve for x
    x = 8,990,611.20/3,612.30
  6. Step 6: Final answer
    x = 2,488.89

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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.