Home / 2,328.18-3,489.09-1,286.64

Finding the Fourth Proportional to 2,328.18, 3,489.09 and 1,286.64

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Solution

The fourth proportional to 2,328.18, 3,489.09 and 1,286.64 is: 1,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.18 : 3,489.09 = 1,286.64 : x
  2. Step 2: Convert to fraction form
    2,328.18/3,489.09 = 1,286.64/x
  3. Step 3: Cross multiply
    2,328.18x = 3,489.09 × 1,286.64
  4. Step 4: Simplify right side
    2,328.18x = 4,489,202.76
  5. Step 5: Solve for x
    x = 4,489,202.76/2,328.18
  6. Step 6: Final answer
    x = 1,928.20

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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.