Home / 7,198.74-10,831.05-4,279.23

Finding the Fourth Proportional to 7,198.74, 10,831.05 and 4,279.23

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Solution

The fourth proportional to 7,198.74, 10,831.05 and 4,279.23 is: 6,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.74 : 10,831.05 = 4,279.23 : x
  2. Step 2: Convert to fraction form
    7,198.74/10,831.05 = 4,279.23/x
  3. Step 3: Cross multiply
    7,198.74x = 10,831.05 × 4,279.23
  4. Step 4: Simplify right side
    7,198.74x = 46,348,554.09
  5. Step 5: Solve for x
    x = 46,348,554.09/7,198.74
  6. Step 6: Final answer
    x = 6,438.43

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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.