Home / 7,453.49-11,180.12-1,906.79

Finding the Fourth Proportional to 7,453.49, 11,180.12 and 1,906.79

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Solution

The fourth proportional to 7,453.49, 11,180.12 and 1,906.79 is: 2,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,453.49 : 11,180.12 = 1,906.79 : x
  2. Step 2: Convert to fraction form
    7,453.49/11,180.12 = 1,906.79/x
  3. Step 3: Cross multiply
    7,453.49x = 11,180.12 × 1,906.79
  4. Step 4: Simplify right side
    7,453.49x = 21,318,079.16
  5. Step 5: Solve for x
    x = 21,318,079.16/7,453.49
  6. Step 6: Final answer
    x = 2,860.15

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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.