Home / 3,107.36-4,656.65-1,721.33

Finding the Fourth Proportional to 3,107.36, 4,656.65 and 1,721.33

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Solution

The fourth proportional to 3,107.36, 4,656.65 and 1,721.33 is: 2,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.36 : 4,656.65 = 1,721.33 : x
  2. Step 2: Convert to fraction form
    3,107.36/4,656.65 = 1,721.33/x
  3. Step 3: Cross multiply
    3,107.36x = 4,656.65 × 1,721.33
  4. Step 4: Simplify right side
    3,107.36x = 8,015,622.74
  5. Step 5: Solve for x
    x = 8,015,622.74/3,107.36
  6. Step 6: Final answer
    x = 2,579.56

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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.