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Finding the Fourth Proportional to 2,657.75, 3,958.55 and 2,518.97

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Solution

The fourth proportional to 2,657.75, 3,958.55 and 2,518.97 is: 3,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.75 : 3,958.55 = 2,518.97 : x
  2. Step 2: Convert to fraction form
    2,657.75/3,958.55 = 2,518.97/x
  3. Step 3: Cross multiply
    2,657.75x = 3,958.55 × 2,518.97
  4. Step 4: Simplify right side
    2,657.75x = 9,971,468.69
  5. Step 5: Solve for x
    x = 9,971,468.69/2,657.75
  6. Step 6: Final answer
    x = 3,751.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.