Home / 2,220.10-3,329.19-680.26

Finding the Fourth Proportional to 2,220.10, 3,329.19 and 680.26

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Solution

The fourth proportional to 2,220.10, 3,329.19 and 680.26 is: 1,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.10 : 3,329.19 = 680.26 : x
  2. Step 2: Convert to fraction form
    2,220.10/3,329.19 = 680.26/x
  3. Step 3: Cross multiply
    2,220.10x = 3,329.19 × 680.26
  4. Step 4: Simplify right side
    2,220.10x = 2,264,714.79
  5. Step 5: Solve for x
    x = 2,264,714.79/2,220.10
  6. Step 6: Final answer
    x = 1,020.10

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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.