Home / 2,733.68-4,100.54-1,089.78

Finding the Fourth Proportional to 2,733.68, 4,100.54 and 1,089.78

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Solution

The fourth proportional to 2,733.68, 4,100.54 and 1,089.78 is: 1,634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,733.68 : 4,100.54 = 1,089.78 : x
  2. Step 2: Convert to fraction form
    2,733.68/4,100.54 = 1,089.78/x
  3. Step 3: Cross multiply
    2,733.68x = 4,100.54 × 1,089.78
  4. Step 4: Simplify right side
    2,733.68x = 4,468,686.48
  5. Step 5: Solve for x
    x = 4,468,686.48/2,733.68
  6. Step 6: Final answer
    x = 1,634.68

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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.