Home / 2,220.91-3,333.17-1,125.58

Finding the Fourth Proportional to 2,220.91, 3,333.17 and 1,125.58

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Solution

The fourth proportional to 2,220.91, 3,333.17 and 1,125.58 is: 1,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.91 : 3,333.17 = 1,125.58 : x
  2. Step 2: Convert to fraction form
    2,220.91/3,333.17 = 1,125.58/x
  3. Step 3: Cross multiply
    2,220.91x = 3,333.17 × 1,125.58
  4. Step 4: Simplify right side
    2,220.91x = 3,751,749.49
  5. Step 5: Solve for x
    x = 3,751,749.49/2,220.91
  6. Step 6: Final answer
    x = 1,689.28

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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.