Home / 2,281.48-3,422.42-638.04

Finding the Fourth Proportional to 2,281.48, 3,422.42 and 638.04

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Solution

The fourth proportional to 2,281.48, 3,422.42 and 638.04 is: 957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.48 : 3,422.42 = 638.04 : x
  2. Step 2: Convert to fraction form
    2,281.48/3,422.42 = 638.04/x
  3. Step 3: Cross multiply
    2,281.48x = 3,422.42 × 638.04
  4. Step 4: Simplify right side
    2,281.48x = 2,183,640.86
  5. Step 5: Solve for x
    x = 2,183,640.86/2,281.48
  6. Step 6: Final answer
    x = 957.12

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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.