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Finding the Fourth Proportional to 3,381.95, 5,074.55 and 1,191.71

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Solution

The fourth proportional to 3,381.95, 5,074.55 and 1,191.71 is: 1,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.95 : 5,074.55 = 1,191.71 : x
  2. Step 2: Convert to fraction form
    3,381.95/5,074.55 = 1,191.71/x
  3. Step 3: Cross multiply
    3,381.95x = 5,074.55 × 1,191.71
  4. Step 4: Simplify right side
    3,381.95x = 6,047,403.18
  5. Step 5: Solve for x
    x = 6,047,403.18/3,381.95
  6. Step 6: Final answer
    x = 1,788.14

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