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Finding the Fourth Proportional to 7,068.12, 9,751.89 and 4,082.88

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Solution

The fourth proportional to 7,068.12, 9,751.89 and 4,082.88 is: 5,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.12 : 9,751.89 = 4,082.88 : x
  2. Step 2: Convert to fraction form
    7,068.12/9,751.89 = 4,082.88/x
  3. Step 3: Cross multiply
    7,068.12x = 9,751.89 × 4,082.88
  4. Step 4: Simplify right side
    7,068.12x = 39,815,796.64
  5. Step 5: Solve for x
    x = 39,815,796.64/7,068.12
  6. Step 6: Final answer
    x = 5,633.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.