Home / 2,224.36-3,069.36-1,279.94

Finding the Fourth Proportional to 2,224.36, 3,069.36 and 1,279.94

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Solution

The fourth proportional to 2,224.36, 3,069.36 and 1,279.94 is: 1,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.36 : 3,069.36 = 1,279.94 : x
  2. Step 2: Convert to fraction form
    2,224.36/3,069.36 = 1,279.94/x
  3. Step 3: Cross multiply
    2,224.36x = 3,069.36 × 1,279.94
  4. Step 4: Simplify right side
    2,224.36x = 3,928,581.29
  5. Step 5: Solve for x
    x = 3,928,581.29/2,224.36
  6. Step 6: Final answer
    x = 1,766.16

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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.