Home / 4,871.72-7,315.26-4,226.60

Finding the Fourth Proportional to 4,871.72, 7,315.26 and 4,226.60

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Solution

The fourth proportional to 4,871.72, 7,315.26 and 4,226.60 is: 6,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.72 : 7,315.26 = 4,226.60 : x
  2. Step 2: Convert to fraction form
    4,871.72/7,315.26 = 4,226.60/x
  3. Step 3: Cross multiply
    4,871.72x = 7,315.26 × 4,226.60
  4. Step 4: Simplify right side
    4,871.72x = 30,918,677.92
  5. Step 5: Solve for x
    x = 30,918,677.92/4,871.72
  6. Step 6: Final answer
    x = 6,346.56

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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.