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Finding the Fourth Proportional to 8,798.80, 13,198.17 and 2,642.80

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Solution

The fourth proportional to 8,798.80, 13,198.17 and 2,642.80 is: 3,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.80 : 13,198.17 = 2,642.80 : x
  2. Step 2: Convert to fraction form
    8,798.80/13,198.17 = 2,642.80/x
  3. Step 3: Cross multiply
    8,798.80x = 13,198.17 × 2,642.80
  4. Step 4: Simplify right side
    8,798.80x = 34,880,123.68
  5. Step 5: Solve for x
    x = 34,880,123.68/8,798.80
  6. Step 6: Final answer
    x = 3,964.19

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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.