Home / 4,714.38-7,067.90-2,115.50

Finding the Fourth Proportional to 4,714.38, 7,067.90 and 2,115.50

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Solution

The fourth proportional to 4,714.38, 7,067.90 and 2,115.50 is: 3,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,714.38 : 7,067.90 = 2,115.50 : x
  2. Step 2: Convert to fraction form
    4,714.38/7,067.90 = 2,115.50/x
  3. Step 3: Cross multiply
    4,714.38x = 7,067.90 × 2,115.50
  4. Step 4: Simplify right side
    4,714.38x = 14,952,142.45
  5. Step 5: Solve for x
    x = 14,952,142.45/4,714.38
  6. Step 6: Final answer
    x = 3,171.60

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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.