Home / 3,891.17-5,838.98-1,425.67

Finding the Fourth Proportional to 3,891.17, 5,838.98 and 1,425.67

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Solution

The fourth proportional to 3,891.17, 5,838.98 and 1,425.67 is: 2,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.17 : 5,838.98 = 1,425.67 : x
  2. Step 2: Convert to fraction form
    3,891.17/5,838.98 = 1,425.67/x
  3. Step 3: Cross multiply
    3,891.17x = 5,838.98 × 1,425.67
  4. Step 4: Simplify right side
    3,891.17x = 8,324,458.62
  5. Step 5: Solve for x
    x = 8,324,458.62/3,891.17
  6. Step 6: Final answer
    x = 2,139.32

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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.