Home / 4,380.30-6,564.97-2,189.64

Finding the Fourth Proportional to 4,380.30, 6,564.97 and 2,189.64

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Solution

The fourth proportional to 4,380.30, 6,564.97 and 2,189.64 is: 3,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.30 : 6,564.97 = 2,189.64 : x
  2. Step 2: Convert to fraction form
    4,380.30/6,564.97 = 2,189.64/x
  3. Step 3: Cross multiply
    4,380.30x = 6,564.97 × 2,189.64
  4. Step 4: Simplify right side
    4,380.30x = 14,374,920.91
  5. Step 5: Solve for x
    x = 14,374,920.91/4,380.30
  6. Step 6: Final answer
    x = 3,281.72

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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.