Home / 5,815.45-8,723.10-1,432.95

Finding the Fourth Proportional to 5,815.45, 8,723.10 and 1,432.95

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Solution

The fourth proportional to 5,815.45, 8,723.10 and 1,432.95 is: 2,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.45 : 8,723.10 = 1,432.95 : x
  2. Step 2: Convert to fraction form
    5,815.45/8,723.10 = 1,432.95/x
  3. Step 3: Cross multiply
    5,815.45x = 8,723.10 × 1,432.95
  4. Step 4: Simplify right side
    5,815.45x = 12,499,766.15
  5. Step 5: Solve for x
    x = 12,499,766.15/5,815.45
  6. Step 6: Final answer
    x = 2,149.41

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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.