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Finding the Fourth Proportional to 3,191.33, 4,404.11 and 1,775.11

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Solution

The fourth proportional to 3,191.33, 4,404.11 and 1,775.11 is: 2,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.33 : 4,404.11 = 1,775.11 : x
  2. Step 2: Convert to fraction form
    3,191.33/4,404.11 = 1,775.11/x
  3. Step 3: Cross multiply
    3,191.33x = 4,404.11 × 1,775.11
  4. Step 4: Simplify right side
    3,191.33x = 7,817,770.83
  5. Step 5: Solve for x
    x = 7,817,770.83/3,191.33
  6. Step 6: Final answer
    x = 2,449.69

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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.