Home / 2,518.24-3,478.18-2,202.70

Finding the Fourth Proportional to 2,518.24, 3,478.18 and 2,202.70

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Solution

The fourth proportional to 2,518.24, 3,478.18 and 2,202.70 is: 3,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.24 : 3,478.18 = 2,202.70 : x
  2. Step 2: Convert to fraction form
    2,518.24/3,478.18 = 2,202.70/x
  3. Step 3: Cross multiply
    2,518.24x = 3,478.18 × 2,202.70
  4. Step 4: Simplify right side
    2,518.24x = 7,661,387.09
  5. Step 5: Solve for x
    x = 7,661,387.09/2,518.24
  6. Step 6: Final answer
    x = 3,042.36

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Half scale
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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.