Home / 5,107.09-7,663.97-2,185.62

Finding the Fourth Proportional to 5,107.09, 7,663.97 and 2,185.62

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Solution

The fourth proportional to 5,107.09, 7,663.97 and 2,185.62 is: 3,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.09 : 7,663.97 = 2,185.62 : x
  2. Step 2: Convert to fraction form
    5,107.09/7,663.97 = 2,185.62/x
  3. Step 3: Cross multiply
    5,107.09x = 7,663.97 × 2,185.62
  4. Step 4: Simplify right side
    5,107.09x = 16,750,526.11
  5. Step 5: Solve for x
    x = 16,750,526.11/5,107.09
  6. Step 6: Final answer
    x = 3,279.86

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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.