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Finding the Fourth Proportional to 3,055.74, 4,217.49 and 2,868.18

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Solution

The fourth proportional to 3,055.74, 4,217.49 and 2,868.18 is: 3,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.74 : 4,217.49 = 2,868.18 : x
  2. Step 2: Convert to fraction form
    3,055.74/4,217.49 = 2,868.18/x
  3. Step 3: Cross multiply
    3,055.74x = 4,217.49 × 2,868.18
  4. Step 4: Simplify right side
    3,055.74x = 12,096,520.47
  5. Step 5: Solve for x
    x = 12,096,520.47/3,055.74
  6. Step 6: Final answer
    x = 3,958.62

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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.