Home / 6,218.78-9,282.64-5,480.66

Finding the Fourth Proportional to 6,218.78, 9,282.64 and 5,480.66

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Solution

The fourth proportional to 6,218.78, 9,282.64 and 5,480.66 is: 8,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.78 : 9,282.64 = 5,480.66 : x
  2. Step 2: Convert to fraction form
    6,218.78/9,282.64 = 5,480.66/x
  3. Step 3: Cross multiply
    6,218.78x = 9,282.64 × 5,480.66
  4. Step 4: Simplify right side
    6,218.78x = 50,874,993.74
  5. Step 5: Solve for x
    x = 50,874,993.74/6,218.78
  6. Step 6: Final answer
    x = 8,180.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.