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Finding the Fourth Proportional to 7,098.75, 9,796.28 and 3,955.14

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Solution

The fourth proportional to 7,098.75, 9,796.28 and 3,955.14 is: 5,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.75 : 9,796.28 = 3,955.14 : x
  2. Step 2: Convert to fraction form
    7,098.75/9,796.28 = 3,955.14/x
  3. Step 3: Cross multiply
    7,098.75x = 9,796.28 × 3,955.14
  4. Step 4: Simplify right side
    7,098.75x = 38,745,639.10
  5. Step 5: Solve for x
    x = 38,745,639.10/7,098.75
  6. Step 6: Final answer
    x = 5,458.09

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

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