Home / 5,431.78-8,132.18-3,577.24

Finding the Fourth Proportional to 5,431.78, 8,132.18 and 3,577.24

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Solution

The fourth proportional to 5,431.78, 8,132.18 and 3,577.24 is: 5,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.78 : 8,132.18 = 3,577.24 : x
  2. Step 2: Convert to fraction form
    5,431.78/8,132.18 = 3,577.24/x
  3. Step 3: Cross multiply
    5,431.78x = 8,132.18 × 3,577.24
  4. Step 4: Simplify right side
    5,431.78x = 29,090,751.86
  5. Step 5: Solve for x
    x = 29,090,751.86/5,431.78
  6. Step 6: Final answer
    x = 5,355.66

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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.