Home / 7,126.80-10,690.32-2,196.48

Finding the Fourth Proportional to 7,126.80, 10,690.32 and 2,196.48

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Solution

The fourth proportional to 7,126.80, 10,690.32 and 2,196.48 is: 3,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.80 : 10,690.32 = 2,196.48 : x
  2. Step 2: Convert to fraction form
    7,126.80/10,690.32 = 2,196.48/x
  3. Step 3: Cross multiply
    7,126.80x = 10,690.32 × 2,196.48
  4. Step 4: Simplify right side
    7,126.80x = 23,481,074.07
  5. Step 5: Solve for x
    x = 23,481,074.07/7,126.80
  6. Step 6: Final answer
    x = 3,294.76

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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.