Home / 2,217.70-3,060.50-1,223.04

Finding the Fourth Proportional to 2,217.70, 3,060.50 and 1,223.04

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Solution

The fourth proportional to 2,217.70, 3,060.50 and 1,223.04 is: 1,687.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.70 : 3,060.50 = 1,223.04 : x
  2. Step 2: Convert to fraction form
    2,217.70/3,060.50 = 1,223.04/x
  3. Step 3: Cross multiply
    2,217.70x = 3,060.50 × 1,223.04
  4. Step 4: Simplify right side
    2,217.70x = 3,743,113.92
  5. Step 5: Solve for x
    x = 3,743,113.92/2,217.70
  6. Step 6: Final answer
    x = 1,687.84

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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.