Home / 3,420.82-4,722.33-2,162.62

Finding the Fourth Proportional to 3,420.82, 4,722.33 and 2,162.62

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Solution

The fourth proportional to 3,420.82, 4,722.33 and 2,162.62 is: 2,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.82 : 4,722.33 = 2,162.62 : x
  2. Step 2: Convert to fraction form
    3,420.82/4,722.33 = 2,162.62/x
  3. Step 3: Cross multiply
    3,420.82x = 4,722.33 × 2,162.62
  4. Step 4: Simplify right side
    3,420.82x = 10,212,605.30
  5. Step 5: Solve for x
    x = 10,212,605.30/3,420.82
  6. Step 6: Final answer
    x = 2,985.43

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1.5x scale

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.