Home / 1,727.82-2,385.48-1,065.78

Finding the Fourth Proportional to 1,727.82, 2,385.48 and 1,065.78

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Solution

The fourth proportional to 1,727.82, 2,385.48 and 1,065.78 is: 1,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.82 : 2,385.48 = 1,065.78 : x
  2. Step 2: Convert to fraction form
    1,727.82/2,385.48 = 1,065.78/x
  3. Step 3: Cross multiply
    1,727.82x = 2,385.48 × 1,065.78
  4. Step 4: Simplify right side
    1,727.82x = 2,542,396.87
  5. Step 5: Solve for x
    x = 2,542,396.87/1,727.82
  6. Step 6: Final answer
    x = 1,471.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.