Home / 2,217.64-3,060.29-1,222.85

Finding the Fourth Proportional to 2,217.64, 3,060.29 and 1,222.85

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Solution

The fourth proportional to 2,217.64, 3,060.29 and 1,222.85 is: 1,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.64 : 3,060.29 = 1,222.85 : x
  2. Step 2: Convert to fraction form
    2,217.64/3,060.29 = 1,222.85/x
  3. Step 3: Cross multiply
    2,217.64x = 3,060.29 × 1,222.85
  4. Step 4: Simplify right side
    2,217.64x = 3,742,277.74
  5. Step 5: Solve for x
    x = 3,742,277.74/2,217.64
  6. Step 6: Final answer
    x = 1,687.51

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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.