Home / 6,862.16-9,469.84-4,028.80

Finding the Fourth Proportional to 6,862.16, 9,469.84 and 4,028.80

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Solution

The fourth proportional to 6,862.16, 9,469.84 and 4,028.80 is: 5,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.16 : 9,469.84 = 4,028.80 : x
  2. Step 2: Convert to fraction form
    6,862.16/9,469.84 = 4,028.80/x
  3. Step 3: Cross multiply
    6,862.16x = 9,469.84 × 4,028.80
  4. Step 4: Simplify right side
    6,862.16x = 38,152,091.39
  5. Step 5: Solve for x
    x = 38,152,091.39/6,862.16
  6. Step 6: Final answer
    x = 5,559.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.