Home / 6,121.86-8,448.35-3,469.18

Finding the Fourth Proportional to 6,121.86, 8,448.35 and 3,469.18

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Solution

The fourth proportional to 6,121.86, 8,448.35 and 3,469.18 is: 4,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.86 : 8,448.35 = 3,469.18 : x
  2. Step 2: Convert to fraction form
    6,121.86/8,448.35 = 3,469.18/x
  3. Step 3: Cross multiply
    6,121.86x = 8,448.35 × 3,469.18
  4. Step 4: Simplify right side
    6,121.86x = 29,308,808.39
  5. Step 5: Solve for x
    x = 29,308,808.39/6,121.86
  6. Step 6: Final answer
    x = 4,787.57

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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.