Home / 6,121.88-8,448.19-3,637.88

Finding the Fourth Proportional to 6,121.88, 8,448.19 and 3,637.88

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Solution

The fourth proportional to 6,121.88, 8,448.19 and 3,637.88 is: 5,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.88 : 8,448.19 = 3,637.88 : x
  2. Step 2: Convert to fraction form
    6,121.88/8,448.19 = 3,637.88/x
  3. Step 3: Cross multiply
    6,121.88x = 8,448.19 × 3,637.88
  4. Step 4: Simplify right side
    6,121.88x = 30,733,450.10
  5. Step 5: Solve for x
    x = 30,733,450.10/6,121.88
  6. Step 6: Final answer
    x = 5,020.27

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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.