Home / 2,825.20-4,233.68-2,669.40

Finding the Fourth Proportional to 2,825.20, 4,233.68 and 2,669.40

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Solution

The fourth proportional to 2,825.20, 4,233.68 and 2,669.40 is: 4,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.20 : 4,233.68 = 2,669.40 : x
  2. Step 2: Convert to fraction form
    2,825.20/4,233.68 = 2,669.40/x
  3. Step 3: Cross multiply
    2,825.20x = 4,233.68 × 2,669.40
  4. Step 4: Simplify right side
    2,825.20x = 11,301,385.39
  5. Step 5: Solve for x
    x = 11,301,385.39/2,825.20
  6. Step 6: Final answer
    x = 4,000.21

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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.