Home / 3,808.48-5,712.72-1,729.18

Finding the Fourth Proportional to 3,808.48, 5,712.72 and 1,729.18

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Solution

The fourth proportional to 3,808.48, 5,712.72 and 1,729.18 is: 2,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.48 : 5,712.72 = 1,729.18 : x
  2. Step 2: Convert to fraction form
    3,808.48/5,712.72 = 1,729.18/x
  3. Step 3: Cross multiply
    3,808.48x = 5,712.72 × 1,729.18
  4. Step 4: Simplify right side
    3,808.48x = 9,878,321.17
  5. Step 5: Solve for x
    x = 9,878,321.17/3,808.48
  6. Step 6: Final answer
    x = 2,593.77

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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.