Home / 3,485.05-5,227.56-887.98

Finding the Fourth Proportional to 3,485.05, 5,227.56 and 887.98

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Solution

The fourth proportional to 3,485.05, 5,227.56 and 887.98 is: 1,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.05 : 5,227.56 = 887.98 : x
  2. Step 2: Convert to fraction form
    3,485.05/5,227.56 = 887.98/x
  3. Step 3: Cross multiply
    3,485.05x = 5,227.56 × 887.98
  4. Step 4: Simplify right side
    3,485.05x = 4,641,968.73
  5. Step 5: Solve for x
    x = 4,641,968.73/3,485.05
  6. Step 6: Final answer
    x = 1,331.97

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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.