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Finding the Fourth Proportional to 5,497.88, 8,246.95 and 1,988.21

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Solution

The fourth proportional to 5,497.88, 8,246.95 and 1,988.21 is: 2,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.88 : 8,246.95 = 1,988.21 : x
  2. Step 2: Convert to fraction form
    5,497.88/8,246.95 = 1,988.21/x
  3. Step 3: Cross multiply
    5,497.88x = 8,246.95 × 1,988.21
  4. Step 4: Simplify right side
    5,497.88x = 16,396,684.11
  5. Step 5: Solve for x
    x = 16,396,684.11/5,497.88
  6. Step 6: Final answer
    x = 2,982.37

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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.