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Finding the Fourth Proportional to 1,950.41, 2,691.55 and 1,066.21

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Solution

The fourth proportional to 1,950.41, 2,691.55 and 1,066.21 is: 1,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.41 : 2,691.55 = 1,066.21 : x
  2. Step 2: Convert to fraction form
    1,950.41/2,691.55 = 1,066.21/x
  3. Step 3: Cross multiply
    1,950.41x = 2,691.55 × 1,066.21
  4. Step 4: Simplify right side
    1,950.41x = 2,869,757.53
  5. Step 5: Solve for x
    x = 2,869,757.53/1,950.41
  6. Step 6: Final answer
    x = 1,471.36

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Half scale
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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.