Home / 3,968.06-5,475.78-2,199.65

Finding the Fourth Proportional to 3,968.06, 5,475.78 and 2,199.65

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Solution

The fourth proportional to 3,968.06, 5,475.78 and 2,199.65 is: 3,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.06 : 5,475.78 = 2,199.65 : x
  2. Step 2: Convert to fraction form
    3,968.06/5,475.78 = 2,199.65/x
  3. Step 3: Cross multiply
    3,968.06x = 5,475.78 × 2,199.65
  4. Step 4: Simplify right side
    3,968.06x = 12,044,772.10
  5. Step 5: Solve for x
    x = 12,044,772.10/3,968.06
  6. Step 6: Final answer
    x = 3,035.43

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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.