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Finding the Fourth Proportional to 1,327.68, 1,832.52 and 908.76

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Solution

The fourth proportional to 1,327.68, 1,832.52 and 908.76 is: 1,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.68 : 1,832.52 = 908.76 : x
  2. Step 2: Convert to fraction form
    1,327.68/1,832.52 = 908.76/x
  3. Step 3: Cross multiply
    1,327.68x = 1,832.52 × 908.76
  4. Step 4: Simplify right side
    1,327.68x = 1,665,320.88
  5. Step 5: Solve for x
    x = 1,665,320.88/1,327.68
  6. Step 6: Final answer
    x = 1,254.31

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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.