Home / 3,129.80-4,313.94-2,244.20

Finding the Fourth Proportional to 3,129.80, 4,313.94 and 2,244.20

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Solution

The fourth proportional to 3,129.80, 4,313.94 and 2,244.20 is: 3,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.80 : 4,313.94 = 2,244.20 : x
  2. Step 2: Convert to fraction form
    3,129.80/4,313.94 = 2,244.20/x
  3. Step 3: Cross multiply
    3,129.80x = 4,313.94 × 2,244.20
  4. Step 4: Simplify right side
    3,129.80x = 9,681,344.15
  5. Step 5: Solve for x
    x = 9,681,344.15/3,129.80
  6. Step 6: Final answer
    x = 3,093.28

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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.