Home / 3,791.15-5,691.96-2,618.40

Finding the Fourth Proportional to 3,791.15, 5,691.96 and 2,618.40

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Solution

The fourth proportional to 3,791.15, 5,691.96 and 2,618.40 is: 3,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.15 : 5,691.96 = 2,618.40 : x
  2. Step 2: Convert to fraction form
    3,791.15/5,691.96 = 2,618.40/x
  3. Step 3: Cross multiply
    3,791.15x = 5,691.96 × 2,618.40
  4. Step 4: Simplify right side
    3,791.15x = 14,903,828.06
  5. Step 5: Solve for x
    x = 14,903,828.06/3,791.15
  6. Step 6: Final answer
    x = 3,931.22

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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.