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Finding the Fourth Proportional to 1,322.35, 1,824.84 and 732.87

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Solution

The fourth proportional to 1,322.35, 1,824.84 and 732.87 is: 1,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.35 : 1,824.84 = 732.87 : x
  2. Step 2: Convert to fraction form
    1,322.35/1,824.84 = 732.87/x
  3. Step 3: Cross multiply
    1,322.35x = 1,824.84 × 732.87
  4. Step 4: Simplify right side
    1,322.35x = 1,337,370.49
  5. Step 5: Solve for x
    x = 1,337,370.49/1,322.35
  6. Step 6: Final answer
    x = 1,011.36

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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.