Home / 5,108.92-7,663.38-1,646.44

Finding the Fourth Proportional to 5,108.92, 7,663.38 and 1,646.44

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Solution

The fourth proportional to 5,108.92, 7,663.38 and 1,646.44 is: 2,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.92 : 7,663.38 = 1,646.44 : x
  2. Step 2: Convert to fraction form
    5,108.92/7,663.38 = 1,646.44/x
  3. Step 3: Cross multiply
    5,108.92x = 7,663.38 × 1,646.44
  4. Step 4: Simplify right side
    5,108.92x = 12,617,295.37
  5. Step 5: Solve for x
    x = 12,617,295.37/5,108.92
  6. Step 6: Final answer
    x = 2,469.66

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