Home / 7,149.60-10,716.69-2,986.47

Finding the Fourth Proportional to 7,149.60, 10,716.69 and 2,986.47

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Solution

The fourth proportional to 7,149.60, 10,716.69 and 2,986.47 is: 4,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.60 : 10,716.69 = 2,986.47 : x
  2. Step 2: Convert to fraction form
    7,149.60/10,716.69 = 2,986.47/x
  3. Step 3: Cross multiply
    7,149.60x = 10,716.69 × 2,986.47
  4. Step 4: Simplify right side
    7,149.60x = 32,005,073.18
  5. Step 5: Solve for x
    x = 32,005,073.18/7,149.60
  6. Step 6: Final answer
    x = 4,476.48

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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.