Home / 7,142.52-10,716.24-3,245.64

Finding the Fourth Proportional to 7,142.52, 10,716.24 and 3,245.64

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Solution

The fourth proportional to 7,142.52, 10,716.24 and 3,245.64 is: 4,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.52 : 10,716.24 = 3,245.64 : x
  2. Step 2: Convert to fraction form
    7,142.52/10,716.24 = 3,245.64/x
  3. Step 3: Cross multiply
    7,142.52x = 10,716.24 × 3,245.64
  4. Step 4: Simplify right side
    7,142.52x = 34,781,057.19
  5. Step 5: Solve for x
    x = 34,781,057.19/7,142.52
  6. Step 6: Final answer
    x = 4,869.58

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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.