Home / 5,247.39-7,871.07-1,351.77

Finding the Fourth Proportional to 5,247.39, 7,871.07 and 1,351.77

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Solution

The fourth proportional to 5,247.39, 7,871.07 and 1,351.77 is: 2,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.39 : 7,871.07 = 1,351.77 : x
  2. Step 2: Convert to fraction form
    5,247.39/7,871.07 = 1,351.77/x
  3. Step 3: Cross multiply
    5,247.39x = 7,871.07 × 1,351.77
  4. Step 4: Simplify right side
    5,247.39x = 10,639,876.29
  5. Step 5: Solve for x
    x = 10,639,876.29/5,247.39
  6. Step 6: Final answer
    x = 2,027.65

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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.