Home / 4,981.01-6,878.45-3,121.25

Finding the Fourth Proportional to 4,981.01, 6,878.45 and 3,121.25

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Solution

The fourth proportional to 4,981.01, 6,878.45 and 3,121.25 is: 4,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.01 : 6,878.45 = 3,121.25 : x
  2. Step 2: Convert to fraction form
    4,981.01/6,878.45 = 3,121.25/x
  3. Step 3: Cross multiply
    4,981.01x = 6,878.45 × 3,121.25
  4. Step 4: Simplify right side
    4,981.01x = 21,469,335.47
  5. Step 5: Solve for x
    x = 21,469,335.47/4,981.01
  6. Step 6: Final answer
    x = 4,310.24

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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.