Home / 7,229.25-9,977.73-4,085.44

Finding the Fourth Proportional to 7,229.25, 9,977.73 and 4,085.44

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Solution

The fourth proportional to 7,229.25, 9,977.73 and 4,085.44 is: 5,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.25 : 9,977.73 = 4,085.44 : x
  2. Step 2: Convert to fraction form
    7,229.25/9,977.73 = 4,085.44/x
  3. Step 3: Cross multiply
    7,229.25x = 9,977.73 × 4,085.44
  4. Step 4: Simplify right side
    7,229.25x = 40,763,399.97
  5. Step 5: Solve for x
    x = 40,763,399.97/7,229.25
  6. Step 6: Final answer
    x = 5,638.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.