Home / 1,982.88-2,736.53-1,098.76

Finding the Fourth Proportional to 1,982.88, 2,736.53 and 1,098.76

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Solution

The fourth proportional to 1,982.88, 2,736.53 and 1,098.76 is: 1,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.88 : 2,736.53 = 1,098.76 : x
  2. Step 2: Convert to fraction form
    1,982.88/2,736.53 = 1,098.76/x
  3. Step 3: Cross multiply
    1,982.88x = 2,736.53 × 1,098.76
  4. Step 4: Simplify right side
    1,982.88x = 3,006,789.70
  5. Step 5: Solve for x
    x = 3,006,789.70/1,982.88
  6. Step 6: Final answer
    x = 1,516.38

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1.5x scale

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.