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Finding the Fourth Proportional to 4,993.40, 7,490.10 and 4,896.20

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Solution

The fourth proportional to 4,993.40, 7,490.10 and 4,896.20 is: 7,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.40 : 7,490.10 = 4,896.20 : x
  2. Step 2: Convert to fraction form
    4,993.40/7,490.10 = 4,896.20/x
  3. Step 3: Cross multiply
    4,993.40x = 7,490.10 × 4,896.20
  4. Step 4: Simplify right side
    4,993.40x = 36,673,027.62
  5. Step 5: Solve for x
    x = 36,673,027.62/4,993.40
  6. Step 6: Final answer
    x = 7,344.30

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Half 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.