Home / 3,810.20-5,257.52-2,238.80

Finding the Fourth Proportional to 3,810.20, 5,257.52 and 2,238.80

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Solution

The fourth proportional to 3,810.20, 5,257.52 and 2,238.80 is: 3,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.20 : 5,257.52 = 2,238.80 : x
  2. Step 2: Convert to fraction form
    3,810.20/5,257.52 = 2,238.80/x
  3. Step 3: Cross multiply
    3,810.20x = 5,257.52 × 2,238.80
  4. Step 4: Simplify right side
    3,810.20x = 11,770,535.78
  5. Step 5: Solve for x
    x = 11,770,535.78/3,810.20
  6. Step 6: Final answer
    x = 3,089.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.