Home / 3,579.86-4,940.09-2,087.88

Finding the Fourth Proportional to 3,579.86, 4,940.09 and 2,087.88

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Solution

The fourth proportional to 3,579.86, 4,940.09 and 2,087.88 is: 2,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.86 : 4,940.09 = 2,087.88 : x
  2. Step 2: Convert to fraction form
    3,579.86/4,940.09 = 2,087.88/x
  3. Step 3: Cross multiply
    3,579.86x = 4,940.09 × 2,087.88
  4. Step 4: Simplify right side
    3,579.86x = 10,314,293.97
  5. Step 5: Solve for x
    x = 10,314,293.97/3,579.86
  6. Step 6: Final answer
    x = 2,881.20

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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.