Home / 3,687.09-5,087.91-2,114.88

Finding the Fourth Proportional to 3,687.09, 5,087.91 and 2,114.88

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Solution

The fourth proportional to 3,687.09, 5,087.91 and 2,114.88 is: 2,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.09 : 5,087.91 = 2,114.88 : x
  2. Step 2: Convert to fraction form
    3,687.09/5,087.91 = 2,114.88/x
  3. Step 3: Cross multiply
    3,687.09x = 5,087.91 × 2,114.88
  4. Step 4: Simplify right side
    3,687.09x = 10,760,319.10
  5. Step 5: Solve for x
    x = 10,760,319.10/3,687.09
  6. Step 6: Final answer
    x = 2,918.38

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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.