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Finding the Fourth Proportional to 3,191.64, 4,404.24 and 1,775.22

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Solution

The fourth proportional to 3,191.64, 4,404.24 and 1,775.22 is: 2,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.64 : 4,404.24 = 1,775.22 : x
  2. Step 2: Convert to fraction form
    3,191.64/4,404.24 = 1,775.22/x
  3. Step 3: Cross multiply
    3,191.64x = 4,404.24 × 1,775.22
  4. Step 4: Simplify right side
    3,191.64x = 7,818,494.93
  5. Step 5: Solve for x
    x = 7,818,494.93/3,191.64
  6. Step 6: Final answer
    x = 2,449.68

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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.