Home / 5,229.63-7,216.70-2,871.72

Finding the Fourth Proportional to 5,229.63, 7,216.70 and 2,871.72

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Solution

The fourth proportional to 5,229.63, 7,216.70 and 2,871.72 is: 3,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.63 : 7,216.70 = 2,871.72 : x
  2. Step 2: Convert to fraction form
    5,229.63/7,216.70 = 2,871.72/x
  3. Step 3: Cross multiply
    5,229.63x = 7,216.70 × 2,871.72
  4. Step 4: Simplify right side
    5,229.63x = 20,724,327.37
  5. Step 5: Solve for x
    x = 20,724,327.37/5,229.63
  6. Step 6: Final answer
    x = 3,962.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.