Home / 4,261.88-6,389.70-2,871.74

Finding the Fourth Proportional to 4,261.88, 6,389.70 and 2,871.74

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Solution

The fourth proportional to 4,261.88, 6,389.70 and 2,871.74 is: 4,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.88 : 6,389.70 = 2,871.74 : x
  2. Step 2: Convert to fraction form
    4,261.88/6,389.70 = 2,871.74/x
  3. Step 3: Cross multiply
    4,261.88x = 6,389.70 × 2,871.74
  4. Step 4: Simplify right side
    4,261.88x = 18,349,557.08
  5. Step 5: Solve for x
    x = 18,349,557.08/4,261.88
  6. Step 6: Final answer
    x = 4,305.51

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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.