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Finding the Fourth Proportional to 1,950.15, 2,691.12 and 1,065.96

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Solution

The fourth proportional to 1,950.15, 2,691.12 and 1,065.96 is: 1,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.15 : 2,691.12 = 1,065.96 : x
  2. Step 2: Convert to fraction form
    1,950.15/2,691.12 = 1,065.96/x
  3. Step 3: Cross multiply
    1,950.15x = 2,691.12 × 1,065.96
  4. Step 4: Simplify right side
    1,950.15x = 2,868,626.28
  5. Step 5: Solve for x
    x = 2,868,626.28/1,950.15
  6. Step 6: Final answer
    x = 1,470.98

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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.