Home / 2,066.06-2,851.16-1,121.85

Finding the Fourth Proportional to 2,066.06, 2,851.16 and 1,121.85

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Solution

The fourth proportional to 2,066.06, 2,851.16 and 1,121.85 is: 1,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066.06 : 2,851.16 = 1,121.85 : x
  2. Step 2: Convert to fraction form
    2,066.06/2,851.16 = 1,121.85/x
  3. Step 3: Cross multiply
    2,066.06x = 2,851.16 × 1,121.85
  4. Step 4: Simplify right side
    2,066.06x = 3,198,576.65
  5. Step 5: Solve for x
    x = 3,198,576.65/2,066.06
  6. Step 6: Final answer
    x = 1,548.16

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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.