Home / 5,245.97-7,871.61-2,905.52

Finding the Fourth Proportional to 5,245.97, 7,871.61 and 2,905.52

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Solution

The fourth proportional to 5,245.97, 7,871.61 and 2,905.52 is: 4,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.97 : 7,871.61 = 2,905.52 : x
  2. Step 2: Convert to fraction form
    5,245.97/7,871.61 = 2,905.52/x
  3. Step 3: Cross multiply
    5,245.97x = 7,871.61 × 2,905.52
  4. Step 4: Simplify right side
    5,245.97x = 22,871,080.93
  5. Step 5: Solve for x
    x = 22,871,080.93/5,245.97
  6. Step 6: Final answer
    x = 4,359.75

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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.