Home / 3,916.77-5,407.22-2,664.51

Finding the Fourth Proportional to 3,916.77, 5,407.22 and 2,664.51

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Solution

The fourth proportional to 3,916.77, 5,407.22 and 2,664.51 is: 3,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.77 : 5,407.22 = 2,664.51 : x
  2. Step 2: Convert to fraction form
    3,916.77/5,407.22 = 2,664.51/x
  3. Step 3: Cross multiply
    3,916.77x = 5,407.22 × 2,664.51
  4. Step 4: Simplify right side
    3,916.77x = 14,407,578.44
  5. Step 5: Solve for x
    x = 14,407,578.44/3,916.77
  6. Step 6: Final answer
    x = 3,678.43

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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.