Home / 2,165.52-3,239.36-1,800.80

Finding the Fourth Proportional to 2,165.52, 3,239.36 and 1,800.80

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Solution

The fourth proportional to 2,165.52, 3,239.36 and 1,800.80 is: 2,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.52 : 3,239.36 = 1,800.80 : x
  2. Step 2: Convert to fraction form
    2,165.52/3,239.36 = 1,800.80/x
  3. Step 3: Cross multiply
    2,165.52x = 3,239.36 × 1,800.80
  4. Step 4: Simplify right side
    2,165.52x = 5,833,439.49
  5. Step 5: Solve for x
    x = 5,833,439.49/2,165.52
  6. Step 6: Final answer
    x = 2,693.78

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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.