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Finding the Fourth Proportional to 1,302.41, 1,797.32 and 712.96

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Solution

The fourth proportional to 1,302.41, 1,797.32 and 712.96 is: 983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.41 : 1,797.32 = 712.96 : x
  2. Step 2: Convert to fraction form
    1,302.41/1,797.32 = 712.96/x
  3. Step 3: Cross multiply
    1,302.41x = 1,797.32 × 712.96
  4. Step 4: Simplify right side
    1,302.41x = 1,281,414.56
  5. Step 5: Solve for x
    x = 1,281,414.56/1,302.41
  6. Step 6: Final answer
    x = 983.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.