Home / 3,219.11-4,820.79-2,907.47

Finding the Fourth Proportional to 3,219.11, 4,820.79 and 2,907.47

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Solution

The fourth proportional to 3,219.11, 4,820.79 and 2,907.47 is: 4,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.11 : 4,820.79 = 2,907.47 : x
  2. Step 2: Convert to fraction form
    3,219.11/4,820.79 = 2,907.47/x
  3. Step 3: Cross multiply
    3,219.11x = 4,820.79 × 2,907.47
  4. Step 4: Simplify right side
    3,219.11x = 14,016,302.30
  5. Step 5: Solve for x
    x = 14,016,302.30/3,219.11
  6. Step 6: Final answer
    x = 4,354.09

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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.