Home / 3,917.21-5,876.15-1,577.12

Finding the Fourth Proportional to 3,917.21, 5,876.15 and 1,577.12

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Solution

The fourth proportional to 3,917.21, 5,876.15 and 1,577.12 is: 2,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.21 : 5,876.15 = 1,577.12 : x
  2. Step 2: Convert to fraction form
    3,917.21/5,876.15 = 1,577.12/x
  3. Step 3: Cross multiply
    3,917.21x = 5,876.15 × 1,577.12
  4. Step 4: Simplify right side
    3,917.21x = 9,267,365.29
  5. Step 5: Solve for x
    x = 9,267,365.29/3,917.21
  6. Step 6: Final answer
    x = 2,365.81

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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.