Home / 2,217.82-3,060.38-1,223.14

Finding the Fourth Proportional to 2,217.82, 3,060.38 and 1,223.14

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Solution

The fourth proportional to 2,217.82, 3,060.38 and 1,223.14 is: 1,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.82 : 3,060.38 = 1,223.14 : x
  2. Step 2: Convert to fraction form
    2,217.82/3,060.38 = 1,223.14/x
  3. Step 3: Cross multiply
    2,217.82x = 3,060.38 × 1,223.14
  4. Step 4: Simplify right side
    2,217.82x = 3,743,273.19
  5. Step 5: Solve for x
    x = 3,743,273.19/2,217.82
  6. Step 6: Final answer
    x = 1,687.82

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Half scale
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Double scale
Find fourth proportional to 2,218.82, 3,061.76 and 1,224.14
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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.