Home / 3,621.38-5,430.65-1,542.33

Finding the Fourth Proportional to 3,621.38, 5,430.65 and 1,542.33

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Solution

The fourth proportional to 3,621.38, 5,430.65 and 1,542.33 is: 2,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.38 : 5,430.65 = 1,542.33 : x
  2. Step 2: Convert to fraction form
    3,621.38/5,430.65 = 1,542.33/x
  3. Step 3: Cross multiply
    3,621.38x = 5,430.65 × 1,542.33
  4. Step 4: Simplify right side
    3,621.38x = 8,375,846.70
  5. Step 5: Solve for x
    x = 8,375,846.70/3,621.38
  6. Step 6: Final answer
    x = 2,312.89

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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.