Home / 3,790.76-5,227.65-2,672.64

Finding the Fourth Proportional to 3,790.76, 5,227.65 and 2,672.64

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Solution

The fourth proportional to 3,790.76, 5,227.65 and 2,672.64 is: 3,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.76 : 5,227.65 = 2,672.64 : x
  2. Step 2: Convert to fraction form
    3,790.76/5,227.65 = 2,672.64/x
  3. Step 3: Cross multiply
    3,790.76x = 5,227.65 × 2,672.64
  4. Step 4: Simplify right side
    3,790.76x = 13,971,626.50
  5. Step 5: Solve for x
    x = 13,971,626.50/3,790.76
  6. Step 6: Final answer
    x = 3,685.71

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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.