Home / 7,334.61-10,120-4,147.97

Finding the Fourth Proportional to 7,334.61, 10,120 and 4,147.97

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Solution

The fourth proportional to 7,334.61, 10,120 and 4,147.97 is: 5,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.61 : 10,120 = 4,147.97 : x
  2. Step 2: Convert to fraction form
    7,334.61/10,120 = 4,147.97/x
  3. Step 3: Cross multiply
    7,334.61x = 10,120 × 4,147.97
  4. Step 4: Simplify right side
    7,334.61x = 41,977,456.40
  5. Step 5: Solve for x
    x = 41,977,456.40/7,334.61
  6. Step 6: Final answer
    x = 5,723.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.