Home / 2,219.07-3,062.10-1,224.39

Finding the Fourth Proportional to 2,219.07, 3,062.10 and 1,224.39

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Solution

The fourth proportional to 2,219.07, 3,062.10 and 1,224.39 is: 1,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.07 : 3,062.10 = 1,224.39 : x
  2. Step 2: Convert to fraction form
    2,219.07/3,062.10 = 1,224.39/x
  3. Step 3: Cross multiply
    2,219.07x = 3,062.10 × 1,224.39
  4. Step 4: Simplify right side
    2,219.07x = 3,749,204.62
  5. Step 5: Solve for x
    x = 3,749,204.62/2,219.07
  6. Step 6: Final answer
    x = 1,689.54

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Half scale
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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.