Home / 6,645.98-9,171.47-3,993.44

Finding the Fourth Proportional to 6,645.98, 9,171.47 and 3,993.44

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Solution

The fourth proportional to 6,645.98, 9,171.47 and 3,993.44 is: 5,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.98 : 9,171.47 = 3,993.44 : x
  2. Step 2: Convert to fraction form
    6,645.98/9,171.47 = 3,993.44/x
  3. Step 3: Cross multiply
    6,645.98x = 9,171.47 × 3,993.44
  4. Step 4: Simplify right side
    6,645.98x = 36,625,679.28
  5. Step 5: Solve for x
    x = 36,625,679.28/6,645.98
  6. Step 6: Final answer
    x = 5,510.95

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.