Home / 6,121.58-8,447.78-3,468.99

Finding the Fourth Proportional to 6,121.58, 8,447.78 and 3,468.99

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Solution

The fourth proportional to 6,121.58, 8,447.78 and 3,468.99 is: 4,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.58 : 8,447.78 = 3,468.99 : x
  2. Step 2: Convert to fraction form
    6,121.58/8,447.78 = 3,468.99/x
  3. Step 3: Cross multiply
    6,121.58x = 8,447.78 × 3,468.99
  4. Step 4: Simplify right side
    6,121.58x = 29,305,204.76
  5. Step 5: Solve for x
    x = 29,305,204.76/6,121.58
  6. Step 6: Final answer
    x = 4,787.20

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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.