Home / 5,442.55-7,511.90-3,318.79

Finding the Fourth Proportional to 5,442.55, 7,511.90 and 3,318.79

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Solution

The fourth proportional to 5,442.55, 7,511.90 and 3,318.79 is: 4,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442.55 : 7,511.90 = 3,318.79 : x
  2. Step 2: Convert to fraction form
    5,442.55/7,511.90 = 3,318.79/x
  3. Step 3: Cross multiply
    5,442.55x = 7,511.90 × 3,318.79
  4. Step 4: Simplify right side
    5,442.55x = 24,930,418.60
  5. Step 5: Solve for x
    x = 24,930,418.60/5,442.55
  6. Step 6: Final answer
    x = 4,580.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.