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Finding the Fourth Proportional to 1,327.84, 1,832.42 and 738.49

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Solution

The fourth proportional to 1,327.84, 1,832.42 and 738.49 is: 1,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.84 : 1,832.42 = 738.49 : x
  2. Step 2: Convert to fraction form
    1,327.84/1,832.42 = 738.49/x
  3. Step 3: Cross multiply
    1,327.84x = 1,832.42 × 738.49
  4. Step 4: Simplify right side
    1,327.84x = 1,353,219.26
  5. Step 5: Solve for x
    x = 1,353,219.26/1,327.84
  6. Step 6: Final answer
    x = 1,019.12

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1.5x scale

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.