Home / 3,418.77-5,127.35-1,664.72

Finding the Fourth Proportional to 3,418.77, 5,127.35 and 1,664.72

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Solution

The fourth proportional to 3,418.77, 5,127.35 and 1,664.72 is: 2,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.77 : 5,127.35 = 1,664.72 : x
  2. Step 2: Convert to fraction form
    3,418.77/5,127.35 = 1,664.72/x
  3. Step 3: Cross multiply
    3,418.77x = 5,127.35 × 1,664.72
  4. Step 4: Simplify right side
    3,418.77x = 8,535,568.13
  5. Step 5: Solve for x
    x = 8,535,568.13/3,418.77
  6. Step 6: Final answer
    x = 2,496.68

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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.