Home / 2,176.47-3,263.67-789.60

Finding the Fourth Proportional to 2,176.47, 3,263.67 and 789.60

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Solution

The fourth proportional to 2,176.47, 3,263.67 and 789.60 is: 1,184.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.47 : 3,263.67 = 789.60 : x
  2. Step 2: Convert to fraction form
    2,176.47/3,263.67 = 789.60/x
  3. Step 3: Cross multiply
    2,176.47x = 3,263.67 × 789.60
  4. Step 4: Simplify right side
    2,176.47x = 2,576,993.83
  5. Step 5: Solve for x
    x = 2,576,993.83/2,176.47
  6. Step 6: Final answer
    x = 1,184.02

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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.