Home / 1,872.68-2,584.38-1,086.56

Finding the Fourth Proportional to 1,872.68, 2,584.38 and 1,086.56

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Solution

The fourth proportional to 1,872.68, 2,584.38 and 1,086.56 is: 1,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.68 : 2,584.38 = 1,086.56 : x
  2. Step 2: Convert to fraction form
    1,872.68/2,584.38 = 1,086.56/x
  3. Step 3: Cross multiply
    1,872.68x = 2,584.38 × 1,086.56
  4. Step 4: Simplify right side
    1,872.68x = 2,808,083.93
  5. Step 5: Solve for x
    x = 2,808,083.93/1,872.68
  6. Step 6: Final answer
    x = 1,499.50

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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.