Home / 10,629.80-15,945.77-2,839.16

Finding the Fourth Proportional to 10,629.80, 15,945.77 and 2,839.16

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Solution

The fourth proportional to 10,629.80, 15,945.77 and 2,839.16 is: 4,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.80 : 15,945.77 = 2,839.16 : x
  2. Step 2: Convert to fraction form
    10,629.80/15,945.77 = 2,839.16/x
  3. Step 3: Cross multiply
    10,629.80x = 15,945.77 × 2,839.16
  4. Step 4: Simplify right side
    10,629.80x = 45,272,519.72
  5. Step 5: Solve for x
    x = 45,272,519.72/10,629.80
  6. Step 6: Final answer
    x = 4,259.02

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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.