Home / 2,224.29-3,069.70-1,229.88

Finding the Fourth Proportional to 2,224.29, 3,069.70 and 1,229.88

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Solution

The fourth proportional to 2,224.29, 3,069.70 and 1,229.88 is: 1,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.29 : 3,069.70 = 1,229.88 : x
  2. Step 2: Convert to fraction form
    2,224.29/3,069.70 = 1,229.88/x
  3. Step 3: Cross multiply
    2,224.29x = 3,069.70 × 1,229.88
  4. Step 4: Simplify right side
    2,224.29x = 3,775,371.07
  5. Step 5: Solve for x
    x = 3,775,371.07/2,224.29
  6. Step 6: Final answer
    x = 1,697.34

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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.