Home / 5,144.06-7,098.78-2,786.20

Finding the Fourth Proportional to 5,144.06, 7,098.78 and 2,786.20

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Solution

The fourth proportional to 5,144.06, 7,098.78 and 2,786.20 is: 3,844.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.06 : 7,098.78 = 2,786.20 : x
  2. Step 2: Convert to fraction form
    5,144.06/7,098.78 = 2,786.20/x
  3. Step 3: Cross multiply
    5,144.06x = 7,098.78 × 2,786.20
  4. Step 4: Simplify right side
    5,144.06x = 19,778,620.84
  5. Step 5: Solve for x
    x = 19,778,620.84/5,144.06
  6. Step 6: Final answer
    x = 3,844.94

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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.