Home / 3,111.18-4,299.62-2,550.80

Finding the Fourth Proportional to 3,111.18, 4,299.62 and 2,550.80

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Solution

The fourth proportional to 3,111.18, 4,299.62 and 2,550.80 is: 3,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.18 : 4,299.62 = 2,550.80 : x
  2. Step 2: Convert to fraction form
    3,111.18/4,299.62 = 2,550.80/x
  3. Step 3: Cross multiply
    3,111.18x = 4,299.62 × 2,550.80
  4. Step 4: Simplify right side
    3,111.18x = 10,967,470.70
  5. Step 5: Solve for x
    x = 10,967,470.70/3,111.18
  6. Step 6: Final answer
    x = 3,525.18

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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.