Home / 4,261.89-6,389.64-2,871.33

Finding the Fourth Proportional to 4,261.89, 6,389.64 and 2,871.33

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Solution

The fourth proportional to 4,261.89, 6,389.64 and 2,871.33 is: 4,304.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.89 : 6,389.64 = 2,871.33 : x
  2. Step 2: Convert to fraction form
    4,261.89/6,389.64 = 2,871.33/x
  3. Step 3: Cross multiply
    4,261.89x = 6,389.64 × 2,871.33
  4. Step 4: Simplify right side
    4,261.89x = 18,346,765.02
  5. Step 5: Solve for x
    x = 18,346,765.02/4,261.89
  6. Step 6: Final answer
    x = 4,304.84

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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.