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Finding the Fourth Proportional to 2,661.62, 3,674.34 and 2,062.79

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Solution

The fourth proportional to 2,661.62, 3,674.34 and 2,062.79 is: 2,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.62 : 3,674.34 = 2,062.79 : x
  2. Step 2: Convert to fraction form
    2,661.62/3,674.34 = 2,062.79/x
  3. Step 3: Cross multiply
    2,661.62x = 3,674.34 × 2,062.79
  4. Step 4: Simplify right side
    2,661.62x = 7,579,373.44
  5. Step 5: Solve for x
    x = 7,579,373.44/2,661.62
  6. Step 6: Final answer
    x = 2,847.66

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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.