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Finding the Fourth Proportional to 3,591.84, 5,388.84 and 1,127.02

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Solution

The fourth proportional to 3,591.84, 5,388.84 and 1,127.02 is: 1,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.84 : 5,388.84 = 1,127.02 : x
  2. Step 2: Convert to fraction form
    3,591.84/5,388.84 = 1,127.02/x
  3. Step 3: Cross multiply
    3,591.84x = 5,388.84 × 1,127.02
  4. Step 4: Simplify right side
    3,591.84x = 6,073,330.46
  5. Step 5: Solve for x
    x = 6,073,330.46/3,591.84
  6. Step 6: Final answer
    x = 1,690.87

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1.5x scale

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.