Home / 6,868.80-9,478.44-3,884.94

Finding the Fourth Proportional to 6,868.80, 9,478.44 and 3,884.94

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Solution

The fourth proportional to 6,868.80, 9,478.44 and 3,884.94 is: 5,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.80 : 9,478.44 = 3,884.94 : x
  2. Step 2: Convert to fraction form
    6,868.80/9,478.44 = 3,884.94/x
  3. Step 3: Cross multiply
    6,868.80x = 9,478.44 × 3,884.94
  4. Step 4: Simplify right side
    6,868.80x = 36,823,170.69
  5. Step 5: Solve for x
    x = 36,823,170.69/6,868.80
  6. Step 6: Final answer
    x = 5,360.93

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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.