Home / 3,913.31-5,871.85-1,721.75

Finding the Fourth Proportional to 3,913.31, 5,871.85 and 1,721.75

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Solution

The fourth proportional to 3,913.31, 5,871.85 and 1,721.75 is: 2,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.31 : 5,871.85 = 1,721.75 : x
  2. Step 2: Convert to fraction form
    3,913.31/5,871.85 = 1,721.75/x
  3. Step 3: Cross multiply
    3,913.31x = 5,871.85 × 1,721.75
  4. Step 4: Simplify right side
    3,913.31x = 10,109,824.07
  5. Step 5: Solve for x
    x = 10,109,824.07/3,913.31
  6. Step 6: Final answer
    x = 2,583.44

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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.