Home / 1,942.52-2,913.80-1,324.70

Finding the Fourth Proportional to 1,942.52, 2,913.80 and 1,324.70

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Solution

The fourth proportional to 1,942.52, 2,913.80 and 1,324.70 is: 1,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.52 : 2,913.80 = 1,324.70 : x
  2. Step 2: Convert to fraction form
    1,942.52/2,913.80 = 1,324.70/x
  3. Step 3: Cross multiply
    1,942.52x = 2,913.80 × 1,324.70
  4. Step 4: Simplify right side
    1,942.52x = 3,859,910.86
  5. Step 5: Solve for x
    x = 3,859,910.86/1,942.52
  6. Step 6: Final answer
    x = 1,987.06

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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.