Home / 7,126.20-10,690.44-2,194.80

Finding the Fourth Proportional to 7,126.20, 10,690.44 and 2,194.80

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Solution

The fourth proportional to 7,126.20, 10,690.44 and 2,194.80 is: 3,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.20 : 10,690.44 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    7,126.20/10,690.44 = 2,194.80/x
  3. Step 3: Cross multiply
    7,126.20x = 10,690.44 × 2,194.80
  4. Step 4: Simplify right side
    7,126.20x = 23,463,377.71
  5. Step 5: Solve for x
    x = 23,463,377.71/7,126.20
  6. Step 6: Final answer
    x = 3,292.55

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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.