Home / 5,489.40-8,234.10-1,540.65

Finding the Fourth Proportional to 5,489.40, 8,234.10 and 1,540.65

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Solution

The fourth proportional to 5,489.40, 8,234.10 and 1,540.65 is: 2,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.40 : 8,234.10 = 1,540.65 : x
  2. Step 2: Convert to fraction form
    5,489.40/8,234.10 = 1,540.65/x
  3. Step 3: Cross multiply
    5,489.40x = 8,234.10 × 1,540.65
  4. Step 4: Simplify right side
    5,489.40x = 12,685,866.17
  5. Step 5: Solve for x
    x = 12,685,866.17/5,489.40
  6. Step 6: Final answer
    x = 2,310.98

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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.