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Finding the Fourth Proportional to 5,398.50, 8,097.75 and 1,935.75

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Solution

The fourth proportional to 5,398.50, 8,097.75 and 1,935.75 is: 2,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.50 : 8,097.75 = 1,935.75 : x
  2. Step 2: Convert to fraction form
    5,398.50/8,097.75 = 1,935.75/x
  3. Step 3: Cross multiply
    5,398.50x = 8,097.75 × 1,935.75
  4. Step 4: Simplify right side
    5,398.50x = 15,675,219.56
  5. Step 5: Solve for x
    x = 15,675,219.56/5,398.50
  6. Step 6: Final answer
    x = 2,903.63

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Double scale
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Similar ratio
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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.