Home / 1,226.40-1,834.54-1,118.27

Finding the Fourth Proportional to 1,226.40, 1,834.54 and 1,118.27

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Solution

The fourth proportional to 1,226.40, 1,834.54 and 1,118.27 is: 1,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.40 : 1,834.54 = 1,118.27 : x
  2. Step 2: Convert to fraction form
    1,226.40/1,834.54 = 1,118.27/x
  3. Step 3: Cross multiply
    1,226.40x = 1,834.54 × 1,118.27
  4. Step 4: Simplify right side
    1,226.40x = 2,051,496.28
  5. Step 5: Solve for x
    x = 2,051,496.28/1,226.40
  6. Step 6: Final answer
    x = 1,672.78

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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.