Home / 2,919.30-4,372.14-2,042.70

Finding the Fourth Proportional to 2,919.30, 4,372.14 and 2,042.70

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Solution

The fourth proportional to 2,919.30, 4,372.14 and 2,042.70 is: 3,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.30 : 4,372.14 = 2,042.70 : x
  2. Step 2: Convert to fraction form
    2,919.30/4,372.14 = 2,042.70/x
  3. Step 3: Cross multiply
    2,919.30x = 4,372.14 × 2,042.70
  4. Step 4: Simplify right side
    2,919.30x = 8,930,970.38
  5. Step 5: Solve for x
    x = 8,930,970.38/2,919.30
  6. Step 6: Final answer
    x = 3,059.28

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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.