Home / 1,998.55-2,758.01-1,114.35

Finding the Fourth Proportional to 1,998.55, 2,758.01 and 1,114.35

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Solution

The fourth proportional to 1,998.55, 2,758.01 and 1,114.35 is: 1,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.55 : 2,758.01 = 1,114.35 : x
  2. Step 2: Convert to fraction form
    1,998.55/2,758.01 = 1,114.35/x
  3. Step 3: Cross multiply
    1,998.55x = 2,758.01 × 1,114.35
  4. Step 4: Simplify right side
    1,998.55x = 3,073,382.87
  5. Step 5: Solve for x
    x = 3,073,382.87/1,998.55
  6. Step 6: Final answer
    x = 1,537.81

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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.