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Finding the Fourth Proportional to 3,242.96, 4,859.88 and 1,854.22

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Solution

The fourth proportional to 3,242.96, 4,859.88 and 1,854.22 is: 2,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.96 : 4,859.88 = 1,854.22 : x
  2. Step 2: Convert to fraction form
    3,242.96/4,859.88 = 1,854.22/x
  3. Step 3: Cross multiply
    3,242.96x = 4,859.88 × 1,854.22
  4. Step 4: Simplify right side
    3,242.96x = 9,011,286.69
  5. Step 5: Solve for x
    x = 9,011,286.69/3,242.96
  6. Step 6: Final answer
    x = 2,778.72

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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.