Home / 2,176.50-3,264.76-789.84

Finding the Fourth Proportional to 2,176.50, 3,264.76 and 789.84

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Solution

The fourth proportional to 2,176.50, 3,264.76 and 789.84 is: 1,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.50 : 3,264.76 = 789.84 : x
  2. Step 2: Convert to fraction form
    2,176.50/3,264.76 = 789.84/x
  3. Step 3: Cross multiply
    2,176.50x = 3,264.76 × 789.84
  4. Step 4: Simplify right side
    2,176.50x = 2,578,638.04
  5. Step 5: Solve for x
    x = 2,578,638.04/2,176.50
  6. Step 6: Final answer
    x = 1,184.76

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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.