Home / 2,240.49-3,091.84-1,245.81

Finding the Fourth Proportional to 2,240.49, 3,091.84 and 1,245.81

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Solution

The fourth proportional to 2,240.49, 3,091.84 and 1,245.81 is: 1,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.49 : 3,091.84 = 1,245.81 : x
  2. Step 2: Convert to fraction form
    2,240.49/3,091.84 = 1,245.81/x
  3. Step 3: Cross multiply
    2,240.49x = 3,091.84 × 1,245.81
  4. Step 4: Simplify right side
    2,240.49x = 3,851,853.67
  5. Step 5: Solve for x
    x = 3,851,853.67/2,240.49
  6. Step 6: Final answer
    x = 1,719.20

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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.