Home / 6,042.72-9,069-3,121.92

Finding the Fourth Proportional to 6,042.72, 9,069 and 3,121.92

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Solution

The fourth proportional to 6,042.72, 9,069 and 3,121.92 is: 4,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,042.72 : 9,069 = 3,121.92 : x
  2. Step 2: Convert to fraction form
    6,042.72/9,069 = 3,121.92/x
  3. Step 3: Cross multiply
    6,042.72x = 9,069 × 3,121.92
  4. Step 4: Simplify right side
    6,042.72x = 28,312,692.48
  5. Step 5: Solve for x
    x = 28,312,692.48/6,042.72
  6. Step 6: Final answer
    x = 4,685.42

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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.