Home / 1,998.17-2,757.46-1,113.95

Finding the Fourth Proportional to 1,998.17, 2,757.46 and 1,113.95

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Solution

The fourth proportional to 1,998.17, 2,757.46 and 1,113.95 is: 1,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.17 : 2,757.46 = 1,113.95 : x
  2. Step 2: Convert to fraction form
    1,998.17/2,757.46 = 1,113.95/x
  3. Step 3: Cross multiply
    1,998.17x = 2,757.46 × 1,113.95
  4. Step 4: Simplify right side
    1,998.17x = 3,071,672.57
  5. Step 5: Solve for x
    x = 3,071,672.57/1,998.17
  6. Step 6: Final answer
    x = 1,537.24

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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.