Home / 7,149.47-10,719.86-3,199.97

Finding the Fourth Proportional to 7,149.47, 10,719.86 and 3,199.97

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Solution

The fourth proportional to 7,149.47, 10,719.86 and 3,199.97 is: 4,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.47 : 10,719.86 = 3,199.97 : x
  2. Step 2: Convert to fraction form
    7,149.47/10,719.86 = 3,199.97/x
  3. Step 3: Cross multiply
    7,149.47x = 10,719.86 × 3,199.97
  4. Step 4: Simplify right side
    7,149.47x = 34,303,241.20
  5. Step 5: Solve for x
    x = 34,303,241.20/7,149.47
  6. Step 6: Final answer
    x = 4,798.02

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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.