Home / 2,260.79-3,119.94-1,252.47

Finding the Fourth Proportional to 2,260.79, 3,119.94 and 1,252.47

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Solution

The fourth proportional to 2,260.79, 3,119.94 and 1,252.47 is: 1,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.79 : 3,119.94 = 1,252.47 : x
  2. Step 2: Convert to fraction form
    2,260.79/3,119.94 = 1,252.47/x
  3. Step 3: Cross multiply
    2,260.79x = 3,119.94 × 1,252.47
  4. Step 4: Simplify right side
    2,260.79x = 3,907,631.25
  5. Step 5: Solve for x
    x = 3,907,631.25/2,260.79
  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.