Home / 2,176.21-3,263.83-789.56

Finding the Fourth Proportional to 2,176.21, 3,263.83 and 789.56

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Solution

The fourth proportional to 2,176.21, 3,263.83 and 789.56 is: 1,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.21 : 3,263.83 = 789.56 : x
  2. Step 2: Convert to fraction form
    2,176.21/3,263.83 = 789.56/x
  3. Step 3: Cross multiply
    2,176.21x = 3,263.83 × 789.56
  4. Step 4: Simplify right side
    2,176.21x = 2,576,983.56
  5. Step 5: Solve for x
    x = 2,576,983.56/2,176.21
  6. Step 6: Final answer
    x = 1,184.16

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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.