Home / 2,217.24-3,318.84-1,392.66

Finding the Fourth Proportional to 2,217.24, 3,318.84 and 1,392.66

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Solution

The fourth proportional to 2,217.24, 3,318.84 and 1,392.66 is: 2,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.24 : 3,318.84 = 1,392.66 : x
  2. Step 2: Convert to fraction form
    2,217.24/3,318.84 = 1,392.66/x
  3. Step 3: Cross multiply
    2,217.24x = 3,318.84 × 1,392.66
  4. Step 4: Simplify right side
    2,217.24x = 4,622,015.71
  5. Step 5: Solve for x
    x = 4,622,015.71/2,217.24
  6. Step 6: Final answer
    x = 2,084.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.