Home / 5,440.20-8,160.30-5,330.85

Finding the Fourth Proportional to 5,440.20, 8,160.30 and 5,330.85

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Solution

The fourth proportional to 5,440.20, 8,160.30 and 5,330.85 is: 7,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.20 : 8,160.30 = 5,330.85 : x
  2. Step 2: Convert to fraction form
    5,440.20/8,160.30 = 5,330.85/x
  3. Step 3: Cross multiply
    5,440.20x = 8,160.30 × 5,330.85
  4. Step 4: Simplify right side
    5,440.20x = 43,501,335.26
  5. Step 5: Solve for x
    x = 43,501,335.26/5,440.20
  6. Step 6: Final answer
    x = 7,996.28

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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.