Home / 2,518.11-3,777.15-1,131.48

Finding the Fourth Proportional to 2,518.11, 3,777.15 and 1,131.48

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Solution

The fourth proportional to 2,518.11, 3,777.15 and 1,131.48 is: 1,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.11 : 3,777.15 = 1,131.48 : x
  2. Step 2: Convert to fraction form
    2,518.11/3,777.15 = 1,131.48/x
  3. Step 3: Cross multiply
    2,518.11x = 3,777.15 × 1,131.48
  4. Step 4: Simplify right side
    2,518.11x = 4,273,769.68
  5. Step 5: Solve for x
    x = 4,273,769.68/2,518.11
  6. Step 6: Final answer
    x = 1,697.21

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1.5x scale

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.