Home / 2,219.50-3,062.97-1,224.85

Finding the Fourth Proportional to 2,219.50, 3,062.97 and 1,224.85

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Solution

The fourth proportional to 2,219.50, 3,062.97 and 1,224.85 is: 1,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.50 : 3,062.97 = 1,224.85 : x
  2. Step 2: Convert to fraction form
    2,219.50/3,062.97 = 1,224.85/x
  3. Step 3: Cross multiply
    2,219.50x = 3,062.97 × 1,224.85
  4. Step 4: Simplify right side
    2,219.50x = 3,751,678.80
  5. Step 5: Solve for x
    x = 3,751,678.80/2,219.50
  6. Step 6: Final answer
    x = 1,690.33

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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.