Home / 1,913.80-2,872.14-1,296.04

Finding the Fourth Proportional to 1,913.80, 2,872.14 and 1,296.04

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Solution

The fourth proportional to 1,913.80, 2,872.14 and 1,296.04 is: 1,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.80 : 2,872.14 = 1,296.04 : x
  2. Step 2: Convert to fraction form
    1,913.80/2,872.14 = 1,296.04/x
  3. Step 3: Cross multiply
    1,913.80x = 2,872.14 × 1,296.04
  4. Step 4: Simplify right side
    1,913.80x = 3,722,408.33
  5. Step 5: Solve for x
    x = 3,722,408.33/1,913.80
  6. Step 6: Final answer
    x = 1,945.04

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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.