Home / 3,580.08-4,940.78-2,087.88

Finding the Fourth Proportional to 3,580.08, 4,940.78 and 2,087.88

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Solution

The fourth proportional to 3,580.08, 4,940.78 and 2,087.88 is: 2,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.08 : 4,940.78 = 2,087.88 : x
  2. Step 2: Convert to fraction form
    3,580.08/4,940.78 = 2,087.88/x
  3. Step 3: Cross multiply
    3,580.08x = 4,940.78 × 2,087.88
  4. Step 4: Simplify right side
    3,580.08x = 10,315,755.75
  5. Step 5: Solve for x
    x = 10,315,755.75/3,580.08
  6. Step 6: Final answer
    x = 2,881.43

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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.