Home / 2,240.14-3,091.58-1,245.61

Finding the Fourth Proportional to 2,240.14, 3,091.58 and 1,245.61

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Solution

The fourth proportional to 2,240.14, 3,091.58 and 1,245.61 is: 1,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.14 : 3,091.58 = 1,245.61 : x
  2. Step 2: Convert to fraction form
    2,240.14/3,091.58 = 1,245.61/x
  3. Step 3: Cross multiply
    2,240.14x = 3,091.58 × 1,245.61
  4. Step 4: Simplify right side
    2,240.14x = 3,850,881.28
  5. Step 5: Solve for x
    x = 3,850,881.28/2,240.14
  6. Step 6: Final answer
    x = 1,719.04

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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.