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Finding the Fourth Proportional to 5,995.76, 8,940.78 and 5,580.20

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Solution

The fourth proportional to 5,995.76, 8,940.78 and 5,580.20 is: 8,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,995.76 : 8,940.78 = 5,580.20 : x
  2. Step 2: Convert to fraction form
    5,995.76/8,940.78 = 5,580.20/x
  3. Step 3: Cross multiply
    5,995.76x = 8,940.78 × 5,580.20
  4. Step 4: Simplify right side
    5,995.76x = 49,891,340.56
  5. Step 5: Solve for x
    x = 49,891,340.56/5,995.76
  6. Step 6: Final answer
    x = 8,321.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.