Home / 3,122.57-4,276.34-3,081.57

Finding the Fourth Proportional to 3,122.57, 4,276.34 and 3,081.57

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Solution

The fourth proportional to 3,122.57, 4,276.34 and 3,081.57 is: 4,220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.57 : 4,276.34 = 3,081.57 : x
  2. Step 2: Convert to fraction form
    3,122.57/4,276.34 = 3,081.57/x
  3. Step 3: Cross multiply
    3,122.57x = 4,276.34 × 3,081.57
  4. Step 4: Simplify right side
    3,122.57x = 13,177,821.17
  5. Step 5: Solve for x
    x = 13,177,821.17/3,122.57
  6. Step 6: Final answer
    x = 4,220.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.