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Finding the Fourth Proportional to 1,933.67, 2,901.62 and 838.15

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Solution

The fourth proportional to 1,933.67, 2,901.62 and 838.15 is: 1,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.67 : 2,901.62 = 838.15 : x
  2. Step 2: Convert to fraction form
    1,933.67/2,901.62 = 838.15/x
  3. Step 3: Cross multiply
    1,933.67x = 2,901.62 × 838.15
  4. Step 4: Simplify right side
    1,933.67x = 2,431,987.64
  5. Step 5: Solve for x
    x = 2,431,987.64/1,933.67
  6. Step 6: Final answer
    x = 1,257.70

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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.