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Finding the Fourth Proportional to 1,891.15, 2,839.38 and 967.37

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Solution

The fourth proportional to 1,891.15, 2,839.38 and 967.37 is: 1,452.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.15 : 2,839.38 = 967.37 : x
  2. Step 2: Convert to fraction form
    1,891.15/2,839.38 = 967.37/x
  3. Step 3: Cross multiply
    1,891.15x = 2,839.38 × 967.37
  4. Step 4: Simplify right side
    1,891.15x = 2,746,723.91
  5. Step 5: Solve for x
    x = 2,746,723.91/1,891.15
  6. Step 6: Final answer
    x = 1,452.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.