Home / 2,176.14-3,263.25-789.15

Finding the Fourth Proportional to 2,176.14, 3,263.25 and 789.15

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Solution

The fourth proportional to 2,176.14, 3,263.25 and 789.15 is: 1,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.14 : 3,263.25 = 789.15 : x
  2. Step 2: Convert to fraction form
    2,176.14/3,263.25 = 789.15/x
  3. Step 3: Cross multiply
    2,176.14x = 3,263.25 × 789.15
  4. Step 4: Simplify right side
    2,176.14x = 2,575,193.74
  5. Step 5: Solve for x
    x = 2,575,193.74/2,176.14
  6. Step 6: Final answer
    x = 1,183.38

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1.5x scale

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.