Home / 3,113.27-4,290.39-2,227.53

Finding the Fourth Proportional to 3,113.27, 4,290.39 and 2,227.53

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Solution

The fourth proportional to 3,113.27, 4,290.39 and 2,227.53 is: 3,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.27 : 4,290.39 = 2,227.53 : x
  2. Step 2: Convert to fraction form
    3,113.27/4,290.39 = 2,227.53/x
  3. Step 3: Cross multiply
    3,113.27x = 4,290.39 × 2,227.53
  4. Step 4: Simplify right side
    3,113.27x = 9,556,972.44
  5. Step 5: Solve for x
    x = 9,556,972.44/3,113.27
  6. Step 6: Final answer
    x = 3,069.76

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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.