Home / 2,263.55-3,389.85-1,286.69

Finding the Fourth Proportional to 2,263.55, 3,389.85 and 1,286.69

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Solution

The fourth proportional to 2,263.55, 3,389.85 and 1,286.69 is: 1,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.55 : 3,389.85 = 1,286.69 : x
  2. Step 2: Convert to fraction form
    2,263.55/3,389.85 = 1,286.69/x
  3. Step 3: Cross multiply
    2,263.55x = 3,389.85 × 1,286.69
  4. Step 4: Simplify right side
    2,263.55x = 4,361,669.15
  5. Step 5: Solve for x
    x = 4,361,669.15/2,263.55
  6. Step 6: Final answer
    x = 1,926.92

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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.