Home / 1,348.44-1,861.26-789.04

Finding the Fourth Proportional to 1,348.44, 1,861.26 and 789.04

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Solution

The fourth proportional to 1,348.44, 1,861.26 and 789.04 is: 1,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.44 : 1,861.26 = 789.04 : x
  2. Step 2: Convert to fraction form
    1,348.44/1,861.26 = 789.04/x
  3. Step 3: Cross multiply
    1,348.44x = 1,861.26 × 789.04
  4. Step 4: Simplify right side
    1,348.44x = 1,468,599.28
  5. Step 5: Solve for x
    x = 1,468,599.28/1,348.44
  6. Step 6: Final answer
    x = 1,089.11

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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.