Home / 3,738.60-5,160.78-2,731.23

Finding the Fourth Proportional to 3,738.60, 5,160.78 and 2,731.23

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Solution

The fourth proportional to 3,738.60, 5,160.78 and 2,731.23 is: 3,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.60 : 5,160.78 = 2,731.23 : x
  2. Step 2: Convert to fraction form
    3,738.60/5,160.78 = 2,731.23/x
  3. Step 3: Cross multiply
    3,738.60x = 5,160.78 × 2,731.23
  4. Step 4: Simplify right side
    3,738.60x = 14,095,277.16
  5. Step 5: Solve for x
    x = 14,095,277.16/3,738.60
  6. Step 6: Final answer
    x = 3,770.20

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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.