Home / 2,176.48-3,264.88-789.28

Finding the Fourth Proportional to 2,176.48, 3,264.88 and 789.28

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Solution

The fourth proportional to 2,176.48, 3,264.88 and 789.28 is: 1,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.48 : 3,264.88 = 789.28 : x
  2. Step 2: Convert to fraction form
    2,176.48/3,264.88 = 789.28/x
  3. Step 3: Cross multiply
    2,176.48x = 3,264.88 × 789.28
  4. Step 4: Simplify right side
    2,176.48x = 2,576,904.49
  5. Step 5: Solve for x
    x = 2,576,904.49/2,176.48
  6. Step 6: Final answer
    x = 1,183.98

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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.