Home / 2,217.87-3,060.68-1,223.19

Finding the Fourth Proportional to 2,217.87, 3,060.68 and 1,223.19

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Solution

The fourth proportional to 2,217.87, 3,060.68 and 1,223.19 is: 1,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.87 : 3,060.68 = 1,223.19 : x
  2. Step 2: Convert to fraction form
    2,217.87/3,060.68 = 1,223.19/x
  3. Step 3: Cross multiply
    2,217.87x = 3,060.68 × 1,223.19
  4. Step 4: Simplify right side
    2,217.87x = 3,743,793.17
  5. Step 5: Solve for x
    x = 3,743,793.17/2,217.87
  6. Step 6: Final answer
    x = 1,688.01

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Double scale
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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.