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Finding the Fourth Proportional to 2,679.71, 3,700.04 and 2,089.22

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Solution

The fourth proportional to 2,679.71, 3,700.04 and 2,089.22 is: 2,884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.71 : 3,700.04 = 2,089.22 : x
  2. Step 2: Convert to fraction form
    2,679.71/3,700.04 = 2,089.22/x
  3. Step 3: Cross multiply
    2,679.71x = 3,700.04 × 2,089.22
  4. Step 4: Simplify right side
    2,679.71x = 7,730,168.62
  5. Step 5: Solve for x
    x = 7,730,168.62/2,679.71
  6. Step 6: Final answer
    x = 2,884.71

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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.