Home / 3,758.42-5,638.25-1,292.65

Finding the Fourth Proportional to 3,758.42, 5,638.25 and 1,292.65

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Solution

The fourth proportional to 3,758.42, 5,638.25 and 1,292.65 is: 1,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.42 : 5,638.25 = 1,292.65 : x
  2. Step 2: Convert to fraction form
    3,758.42/5,638.25 = 1,292.65/x
  3. Step 3: Cross multiply
    3,758.42x = 5,638.25 × 1,292.65
  4. Step 4: Simplify right side
    3,758.42x = 7,288,273.00
  5. Step 5: Solve for x
    x = 7,288,273.00/3,758.42
  6. Step 6: Final answer
    x = 1,939.18

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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.