Home / 7,102.12-10,652.46-2,171.80

Finding the Fourth Proportional to 7,102.12, 10,652.46 and 2,171.80

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Solution

The fourth proportional to 7,102.12, 10,652.46 and 2,171.80 is: 3,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.12 : 10,652.46 = 2,171.80 : x
  2. Step 2: Convert to fraction form
    7,102.12/10,652.46 = 2,171.80/x
  3. Step 3: Cross multiply
    7,102.12x = 10,652.46 × 2,171.80
  4. Step 4: Simplify right side
    7,102.12x = 23,135,012.63
  5. Step 5: Solve for x
    x = 23,135,012.63/7,102.12
  6. Step 6: Final answer
    x = 3,257.48

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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.