Home / 5,082.14-7,621.65-1,961.90

Finding the Fourth Proportional to 5,082.14, 7,621.65 and 1,961.90

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Solution

The fourth proportional to 5,082.14, 7,621.65 and 1,961.90 is: 2,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,082.14 : 7,621.65 = 1,961.90 : x
  2. Step 2: Convert to fraction form
    5,082.14/7,621.65 = 1,961.90/x
  3. Step 3: Cross multiply
    5,082.14x = 7,621.65 × 1,961.90
  4. Step 4: Simplify right side
    5,082.14x = 14,952,915.14
  5. Step 5: Solve for x
    x = 14,952,915.14/5,082.14
  6. Step 6: Final answer
    x = 2,942.25

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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.