Home / 6,121.76-8,448.28-3,469.14

Finding the Fourth Proportional to 6,121.76, 8,448.28 and 3,469.14

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Solution

The fourth proportional to 6,121.76, 8,448.28 and 3,469.14 is: 4,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.76 : 8,448.28 = 3,469.14 : x
  2. Step 2: Convert to fraction form
    6,121.76/8,448.28 = 3,469.14/x
  3. Step 3: Cross multiply
    6,121.76x = 8,448.28 × 3,469.14
  4. Step 4: Simplify right side
    6,121.76x = 29,308,266.08
  5. Step 5: Solve for x
    x = 29,308,266.08/6,121.76
  6. Step 6: Final answer
    x = 4,787.56

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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.