Home / 5,639.07-7,781.39-3,369.96

Finding the Fourth Proportional to 5,639.07, 7,781.39 and 3,369.96

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Solution

The fourth proportional to 5,639.07, 7,781.39 and 3,369.96 is: 4,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.07 : 7,781.39 = 3,369.96 : x
  2. Step 2: Convert to fraction form
    5,639.07/7,781.39 = 3,369.96/x
  3. Step 3: Cross multiply
    5,639.07x = 7,781.39 × 3,369.96
  4. Step 4: Simplify right side
    5,639.07x = 26,222,917.29
  5. Step 5: Solve for x
    x = 26,222,917.29/5,639.07
  6. Step 6: Final answer
    x = 4,650.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.