Home / 3,280.80-4,923-1,549.38

Finding the Fourth Proportional to 3,280.80, 4,923 and 1,549.38

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Solution

The fourth proportional to 3,280.80, 4,923 and 1,549.38 is: 2,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.80 : 4,923 = 1,549.38 : x
  2. Step 2: Convert to fraction form
    3,280.80/4,923 = 1,549.38/x
  3. Step 3: Cross multiply
    3,280.80x = 4,923 × 1,549.38
  4. Step 4: Simplify right side
    3,280.80x = 7,627,597.74
  5. Step 5: Solve for x
    x = 7,627,597.74/3,280.80
  6. Step 6: Final answer
    x = 2,324.92

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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.