Home / 1,806.32-2,708.24-868.77

Finding the Fourth Proportional to 1,806.32, 2,708.24 and 868.77

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Solution

The fourth proportional to 1,806.32, 2,708.24 and 868.77 is: 1,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.32 : 2,708.24 = 868.77 : x
  2. Step 2: Convert to fraction form
    1,806.32/2,708.24 = 868.77/x
  3. Step 3: Cross multiply
    1,806.32x = 2,708.24 × 868.77
  4. Step 4: Simplify right side
    1,806.32x = 2,352,824.12
  5. Step 5: Solve for x
    x = 2,352,824.12/1,806.32
  6. Step 6: Final answer
    x = 1,302.55

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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.