Home / 2,240.41-3,091.87-1,245.71

Finding the Fourth Proportional to 2,240.41, 3,091.87 and 1,245.71

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Solution

The fourth proportional to 2,240.41, 3,091.87 and 1,245.71 is: 1,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.41 : 3,091.87 = 1,245.71 : x
  2. Step 2: Convert to fraction form
    2,240.41/3,091.87 = 1,245.71/x
  3. Step 3: Cross multiply
    2,240.41x = 3,091.87 × 1,245.71
  4. Step 4: Simplify right side
    2,240.41x = 3,851,573.38
  5. Step 5: Solve for x
    x = 3,851,573.38/2,240.41
  6. Step 6: Final answer
    x = 1,719.14

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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.