Home / 3,636.70-5,455.05-2,175.10

Finding the Fourth Proportional to 3,636.70, 5,455.05 and 2,175.10

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Solution

The fourth proportional to 3,636.70, 5,455.05 and 2,175.10 is: 3,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.70 : 5,455.05 = 2,175.10 : x
  2. Step 2: Convert to fraction form
    3,636.70/5,455.05 = 2,175.10/x
  3. Step 3: Cross multiply
    3,636.70x = 5,455.05 × 2,175.10
  4. Step 4: Simplify right side
    3,636.70x = 11,865,279.26
  5. Step 5: Solve for x
    x = 11,865,279.26/3,636.70
  6. Step 6: Final answer
    x = 3,262.65

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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.