Home / 7,229.13-9,976.41-4,085.25

Finding the Fourth Proportional to 7,229.13, 9,976.41 and 4,085.25

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Solution

The fourth proportional to 7,229.13, 9,976.41 and 4,085.25 is: 5,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.13 : 9,976.41 = 4,085.25 : x
  2. Step 2: Convert to fraction form
    7,229.13/9,976.41 = 4,085.25/x
  3. Step 3: Cross multiply
    7,229.13x = 9,976.41 × 4,085.25
  4. Step 4: Simplify right side
    7,229.13x = 40,756,128.95
  5. Step 5: Solve for x
    x = 40,756,128.95/7,229.13
  6. Step 6: Final answer
    x = 5,637.76

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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.