Home / 3,801.19-5,245.86-2,122.62

Finding the Fourth Proportional to 3,801.19, 5,245.86 and 2,122.62

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Solution

The fourth proportional to 3,801.19, 5,245.86 and 2,122.62 is: 2,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.19 : 5,245.86 = 2,122.62 : x
  2. Step 2: Convert to fraction form
    3,801.19/5,245.86 = 2,122.62/x
  3. Step 3: Cross multiply
    3,801.19x = 5,245.86 × 2,122.62
  4. Step 4: Simplify right side
    3,801.19x = 11,134,967.35
  5. Step 5: Solve for x
    x = 11,134,967.35/3,801.19
  6. Step 6: Final answer
    x = 2,929.34

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Half scale
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Double scale
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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.