Home / 2,785.36-4,179.19-1,224.56

Finding the Fourth Proportional to 2,785.36, 4,179.19 and 1,224.56

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Solution

The fourth proportional to 2,785.36, 4,179.19 and 1,224.56 is: 1,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.36 : 4,179.19 = 1,224.56 : x
  2. Step 2: Convert to fraction form
    2,785.36/4,179.19 = 1,224.56/x
  3. Step 3: Cross multiply
    2,785.36x = 4,179.19 × 1,224.56
  4. Step 4: Simplify right side
    2,785.36x = 5,117,668.91
  5. Step 5: Solve for x
    x = 5,117,668.91/2,785.36
  6. Step 6: Final answer
    x = 1,837.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.