Home / 5,422.72-8,125.60-4,193.12

Finding the Fourth Proportional to 5,422.72, 8,125.60 and 4,193.12

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Solution

The fourth proportional to 5,422.72, 8,125.60 and 4,193.12 is: 6,283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.72 : 8,125.60 = 4,193.12 : x
  2. Step 2: Convert to fraction form
    5,422.72/8,125.60 = 4,193.12/x
  3. Step 3: Cross multiply
    5,422.72x = 8,125.60 × 4,193.12
  4. Step 4: Simplify right side
    5,422.72x = 34,071,615.87
  5. Step 5: Solve for x
    x = 34,071,615.87/5,422.72
  6. Step 6: Final answer
    x = 6,283.12

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1.5x scale

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.