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Finding the Fourth Proportional to 3,809.36, 5,714.04 and 2,635.68

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Solution

The fourth proportional to 3,809.36, 5,714.04 and 2,635.68 is: 3,953.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.36 : 5,714.04 = 2,635.68 : x
  2. Step 2: Convert to fraction form
    3,809.36/5,714.04 = 2,635.68/x
  3. Step 3: Cross multiply
    3,809.36x = 5,714.04 × 2,635.68
  4. Step 4: Simplify right side
    3,809.36x = 15,060,380.95
  5. Step 5: Solve for x
    x = 15,060,380.95/3,809.36
  6. Step 6: Final answer
    x = 3,953.52

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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.