Home / 3,811.12-5,712.80-1,732.60

Finding the Fourth Proportional to 3,811.12, 5,712.80 and 1,732.60

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Solution

The fourth proportional to 3,811.12, 5,712.80 and 1,732.60 is: 2,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.12 : 5,712.80 = 1,732.60 : x
  2. Step 2: Convert to fraction form
    3,811.12/5,712.80 = 1,732.60/x
  3. Step 3: Cross multiply
    3,811.12x = 5,712.80 × 1,732.60
  4. Step 4: Simplify right side
    3,811.12x = 9,897,997.28
  5. Step 5: Solve for x
    x = 9,897,997.28/3,811.12
  6. Step 6: Final answer
    x = 2,597.14

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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.