Home / 5,091.31-7,636.97-2,898.91

Finding the Fourth Proportional to 5,091.31, 7,636.97 and 2,898.91

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Solution

The fourth proportional to 5,091.31, 7,636.97 and 2,898.91 is: 4,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.31 : 7,636.97 = 2,898.91 : x
  2. Step 2: Convert to fraction form
    5,091.31/7,636.97 = 2,898.91/x
  3. Step 3: Cross multiply
    5,091.31x = 7,636.97 × 2,898.91
  4. Step 4: Simplify right side
    5,091.31x = 22,138,874.21
  5. Step 5: Solve for x
    x = 22,138,874.21/5,091.31
  6. Step 6: Final answer
    x = 4,348.37

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1.5x scale

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.