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Finding the Fourth Proportional to 3,739.71, 5,167.22 and 2,959.68

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Solution

The fourth proportional to 3,739.71, 5,167.22 and 2,959.68 is: 4,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.71 : 5,167.22 = 2,959.68 : x
  2. Step 2: Convert to fraction form
    3,739.71/5,167.22 = 2,959.68/x
  3. Step 3: Cross multiply
    3,739.71x = 5,167.22 × 2,959.68
  4. Step 4: Simplify right side
    3,739.71x = 15,293,302.89
  5. Step 5: Solve for x
    x = 15,293,302.89/3,739.71
  6. Step 6: Final answer
    x = 4,089.44

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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.