Home / 5,265.36-7,891.18-2,141.72

Finding the Fourth Proportional to 5,265.36, 7,891.18 and 2,141.72

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Solution

The fourth proportional to 5,265.36, 7,891.18 and 2,141.72 is: 3,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.36 : 7,891.18 = 2,141.72 : x
  2. Step 2: Convert to fraction form
    5,265.36/7,891.18 = 2,141.72/x
  3. Step 3: Cross multiply
    5,265.36x = 7,891.18 × 2,141.72
  4. Step 4: Simplify right side
    5,265.36x = 16,900,698.03
  5. Step 5: Solve for x
    x = 16,900,698.03/5,265.36
  6. Step 6: Final answer
    x = 3,209.79

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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.