Home / 1,418.94-2,122.08-1,107.18

Finding the Fourth Proportional to 1,418.94, 2,122.08 and 1,107.18

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Solution

The fourth proportional to 1,418.94, 2,122.08 and 1,107.18 is: 1,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.94 : 2,122.08 = 1,107.18 : x
  2. Step 2: Convert to fraction form
    1,418.94/2,122.08 = 1,107.18/x
  3. Step 3: Cross multiply
    1,418.94x = 2,122.08 × 1,107.18
  4. Step 4: Simplify right side
    1,418.94x = 2,349,524.53
  5. Step 5: Solve for x
    x = 2,349,524.53/1,418.94
  6. Step 6: Final answer
    x = 1,655.83

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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.