Home / 3,769.74-5,630.78-3,186.54

Finding the Fourth Proportional to 3,769.74, 5,630.78 and 3,186.54

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Solution

The fourth proportional to 3,769.74, 5,630.78 and 3,186.54 is: 4,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.74 : 5,630.78 = 3,186.54 : x
  2. Step 2: Convert to fraction form
    3,769.74/5,630.78 = 3,186.54/x
  3. Step 3: Cross multiply
    3,769.74x = 5,630.78 × 3,186.54
  4. Step 4: Simplify right side
    3,769.74x = 17,942,689.77
  5. Step 5: Solve for x
    x = 17,942,689.77/3,769.74
  6. Step 6: Final answer
    x = 4,759.66

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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.