Home / 2,240.27-3,091.48-1,245.47

Finding the Fourth Proportional to 2,240.27, 3,091.48 and 1,245.47

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Solution

The fourth proportional to 2,240.27, 3,091.48 and 1,245.47 is: 1,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.27 : 3,091.48 = 1,245.47 : x
  2. Step 2: Convert to fraction form
    2,240.27/3,091.48 = 1,245.47/x
  3. Step 3: Cross multiply
    2,240.27x = 3,091.48 × 1,245.47
  4. Step 4: Simplify right side
    2,240.27x = 3,850,351.77
  5. Step 5: Solve for x
    x = 3,850,351.77/2,240.27
  6. Step 6: Final answer
    x = 1,718.70

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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.