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Finding the Fourth Proportional to 2,691.66, 4,009.07 and 2,571.72

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Solution

The fourth proportional to 2,691.66, 4,009.07 and 2,571.72 is: 3,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.66 : 4,009.07 = 2,571.72 : x
  2. Step 2: Convert to fraction form
    2,691.66/4,009.07 = 2,571.72/x
  3. Step 3: Cross multiply
    2,691.66x = 4,009.07 × 2,571.72
  4. Step 4: Simplify right side
    2,691.66x = 10,310,192.64
  5. Step 5: Solve for x
    x = 10,310,192.64/2,691.66
  6. Step 6: Final answer
    x = 3,830.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.