Home / 5,961.12-8,230.56-4,172.40

Finding the Fourth Proportional to 5,961.12, 8,230.56 and 4,172.40

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Solution

The fourth proportional to 5,961.12, 8,230.56 and 4,172.40 is: 5,760.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,961.12 : 8,230.56 = 4,172.40 : x
  2. Step 2: Convert to fraction form
    5,961.12/8,230.56 = 4,172.40/x
  3. Step 3: Cross multiply
    5,961.12x = 8,230.56 × 4,172.40
  4. Step 4: Simplify right side
    5,961.12x = 34,341,188.54
  5. Step 5: Solve for x
    x = 34,341,188.54/5,961.12
  6. Step 6: Final answer
    x = 5,760.86

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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.