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Finding the Fourth Proportional to 7,690.28, 10,608.90 and 5,036.52

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Solution

The fourth proportional to 7,690.28, 10,608.90 and 5,036.52 is: 6,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.28 : 10,608.90 = 5,036.52 : x
  2. Step 2: Convert to fraction form
    7,690.28/10,608.90 = 5,036.52/x
  3. Step 3: Cross multiply
    7,690.28x = 10,608.90 × 5,036.52
  4. Step 4: Simplify right side
    7,690.28x = 53,431,937.03
  5. Step 5: Solve for x
    x = 53,431,937.03/7,690.28
  6. Step 6: Final answer
    x = 6,947.98

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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.