Home / 5,440.90-8,158.56-2,663.38

Finding the Fourth Proportional to 5,440.90, 8,158.56 and 2,663.38

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Solution

The fourth proportional to 5,440.90, 8,158.56 and 2,663.38 is: 3,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.90 : 8,158.56 = 2,663.38 : x
  2. Step 2: Convert to fraction form
    5,440.90/8,158.56 = 2,663.38/x
  3. Step 3: Cross multiply
    5,440.90x = 8,158.56 × 2,663.38
  4. Step 4: Simplify right side
    5,440.90x = 21,729,345.53
  5. Step 5: Solve for x
    x = 21,729,345.53/5,440.90
  6. Step 6: Final answer
    x = 3,993.70

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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.