Home / 1,619.78-2,234.97-1,122.26

Finding the Fourth Proportional to 1,619.78, 2,234.97 and 1,122.26

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Solution

The fourth proportional to 1,619.78, 2,234.97 and 1,122.26 is: 1,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.78 : 2,234.97 = 1,122.26 : x
  2. Step 2: Convert to fraction form
    1,619.78/2,234.97 = 1,122.26/x
  3. Step 3: Cross multiply
    1,619.78x = 2,234.97 × 1,122.26
  4. Step 4: Simplify right side
    1,619.78x = 2,508,206.26
  5. Step 5: Solve for x
    x = 2,508,206.26/1,619.78
  6. Step 6: Final answer
    x = 1,548.49

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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.