Home / 2,774.55-4,161.78-1,131.06

Finding the Fourth Proportional to 2,774.55, 4,161.78 and 1,131.06

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Solution

The fourth proportional to 2,774.55, 4,161.78 and 1,131.06 is: 1,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.55 : 4,161.78 = 1,131.06 : x
  2. Step 2: Convert to fraction form
    2,774.55/4,161.78 = 1,131.06/x
  3. Step 3: Cross multiply
    2,774.55x = 4,161.78 × 1,131.06
  4. Step 4: Simplify right side
    2,774.55x = 4,707,238.49
  5. Step 5: Solve for x
    x = 4,707,238.49/2,774.55
  6. Step 6: Final answer
    x = 1,696.57

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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.