Home / 1,822.11-2,732.67-505.55

Finding the Fourth Proportional to 1,822.11, 2,732.67 and 505.55

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Solution

The fourth proportional to 1,822.11, 2,732.67 and 505.55 is: 758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.11 : 2,732.67 = 505.55 : x
  2. Step 2: Convert to fraction form
    1,822.11/2,732.67 = 505.55/x
  3. Step 3: Cross multiply
    1,822.11x = 2,732.67 × 505.55
  4. Step 4: Simplify right side
    1,822.11x = 1,381,508.15
  5. Step 5: Solve for x
    x = 1,381,508.15/1,822.11
  6. Step 6: Final answer
    x = 758.19

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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.