Home / 3,551.84-5,321.60-3,191.12

Finding the Fourth Proportional to 3,551.84, 5,321.60 and 3,191.12

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Solution

The fourth proportional to 3,551.84, 5,321.60 and 3,191.12 is: 4,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.84 : 5,321.60 = 3,191.12 : x
  2. Step 2: Convert to fraction form
    3,551.84/5,321.60 = 3,191.12/x
  3. Step 3: Cross multiply
    3,551.84x = 5,321.60 × 3,191.12
  4. Step 4: Simplify right side
    3,551.84x = 16,981,864.19
  5. Step 5: Solve for x
    x = 16,981,864.19/3,551.84
  6. Step 6: Final answer
    x = 4,781.15

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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.