Home / 5,436.96-8,155.44-1,540.86

Finding the Fourth Proportional to 5,436.96, 8,155.44 and 1,540.86

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Solution

The fourth proportional to 5,436.96, 8,155.44 and 1,540.86 is: 2,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.96 : 8,155.44 = 1,540.86 : x
  2. Step 2: Convert to fraction form
    5,436.96/8,155.44 = 1,540.86/x
  3. Step 3: Cross multiply
    5,436.96x = 8,155.44 × 1,540.86
  4. Step 4: Simplify right side
    5,436.96x = 12,566,391.28
  5. Step 5: Solve for x
    x = 12,566,391.28/5,436.96
  6. Step 6: Final answer
    x = 2,311.29

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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.