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Finding the Fourth Proportional to 2,950.58, 4,071.81 and 1,691.71

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Solution

The fourth proportional to 2,950.58, 4,071.81 and 1,691.71 is: 2,334.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.58 : 4,071.81 = 1,691.71 : x
  2. Step 2: Convert to fraction form
    2,950.58/4,071.81 = 1,691.71/x
  3. Step 3: Cross multiply
    2,950.58x = 4,071.81 × 1,691.71
  4. Step 4: Simplify right side
    2,950.58x = 6,888,292.88
  5. Step 5: Solve for x
    x = 6,888,292.88/2,950.58
  6. Step 6: Final answer
    x = 2,334.56

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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.