Home / 2,180.21-3,269.66-620.10

Finding the Fourth Proportional to 2,180.21, 3,269.66 and 620.10

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Solution

The fourth proportional to 2,180.21, 3,269.66 and 620.10 is: 929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.21 : 3,269.66 = 620.10 : x
  2. Step 2: Convert to fraction form
    2,180.21/3,269.66 = 620.10/x
  3. Step 3: Cross multiply
    2,180.21x = 3,269.66 × 620.10
  4. Step 4: Simplify right side
    2,180.21x = 2,027,513.07
  5. Step 5: Solve for x
    x = 2,027,513.07/2,180.21
  6. Step 6: Final answer
    x = 929.96

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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.