Home / 2,260.72-3,119.79-1,252.49

Finding the Fourth Proportional to 2,260.72, 3,119.79 and 1,252.49

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Solution

The fourth proportional to 2,260.72, 3,119.79 and 1,252.49 is: 1,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.72 : 3,119.79 = 1,252.49 : x
  2. Step 2: Convert to fraction form
    2,260.72/3,119.79 = 1,252.49/x
  3. Step 3: Cross multiply
    2,260.72x = 3,119.79 × 1,252.49
  4. Step 4: Simplify right side
    2,260.72x = 3,907,503.90
  5. Step 5: Solve for x
    x = 3,907,503.90/2,260.72
  6. Step 6: Final answer
    x = 1,728.44

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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.