Home / 2,929.80-4,391.26-1,542.43

Finding the Fourth Proportional to 2,929.80, 4,391.26 and 1,542.43

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Solution

The fourth proportional to 2,929.80, 4,391.26 and 1,542.43 is: 2,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.80 : 4,391.26 = 1,542.43 : x
  2. Step 2: Convert to fraction form
    2,929.80/4,391.26 = 1,542.43/x
  3. Step 3: Cross multiply
    2,929.80x = 4,391.26 × 1,542.43
  4. Step 4: Simplify right side
    2,929.80x = 6,773,212.79
  5. Step 5: Solve for x
    x = 6,773,212.79/2,929.80
  6. Step 6: Final answer
    x = 2,311.83

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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.