Home / 1,658.20-2,487.30-1,633.90

Finding the Fourth Proportional to 1,658.20, 2,487.30 and 1,633.90

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Solution

The fourth proportional to 1,658.20, 2,487.30 and 1,633.90 is: 2,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.20 : 2,487.30 = 1,633.90 : x
  2. Step 2: Convert to fraction form
    1,658.20/2,487.30 = 1,633.90/x
  3. Step 3: Cross multiply
    1,658.20x = 2,487.30 × 1,633.90
  4. Step 4: Simplify right side
    1,658.20x = 4,063,999.47
  5. Step 5: Solve for x
    x = 4,063,999.47/1,658.20
  6. Step 6: Final answer
    x = 2,450.85

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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.