Home / 1,988.18-2,744.57-1,516.11

Finding the Fourth Proportional to 1,988.18, 2,744.57 and 1,516.11

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Solution

The fourth proportional to 1,988.18, 2,744.57 and 1,516.11 is: 2,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.18 : 2,744.57 = 1,516.11 : x
  2. Step 2: Convert to fraction form
    1,988.18/2,744.57 = 1,516.11/x
  3. Step 3: Cross multiply
    1,988.18x = 2,744.57 × 1,516.11
  4. Step 4: Simplify right side
    1,988.18x = 4,161,063.52
  5. Step 5: Solve for x
    x = 4,161,063.52/1,988.18
  6. Step 6: Final answer
    x = 2,092.90

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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.