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Finding the Fourth Proportional to 2,398.80, 3,596.93 and 754.90

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Solution

The fourth proportional to 2,398.80, 3,596.93 and 754.90 is: 1,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.80 : 3,596.93 = 754.90 : x
  2. Step 2: Convert to fraction form
    2,398.80/3,596.93 = 754.90/x
  3. Step 3: Cross multiply
    2,398.80x = 3,596.93 × 754.90
  4. Step 4: Simplify right side
    2,398.80x = 2,715,322.46
  5. Step 5: Solve for x
    x = 2,715,322.46/2,398.80
  6. Step 6: Final answer
    x = 1,131.95

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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.