Home / 2,820.24-4,233.12-2,757.36

Finding the Fourth Proportional to 2,820.24, 4,233.12 and 2,757.36

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Solution

The fourth proportional to 2,820.24, 4,233.12 and 2,757.36 is: 4,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.24 : 4,233.12 = 2,757.36 : x
  2. Step 2: Convert to fraction form
    2,820.24/4,233.12 = 2,757.36/x
  3. Step 3: Cross multiply
    2,820.24x = 4,233.12 × 2,757.36
  4. Step 4: Simplify right side
    2,820.24x = 11,672,235.76
  5. Step 5: Solve for x
    x = 11,672,235.76/2,820.24
  6. Step 6: Final answer
    x = 4,138.74

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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.