Home / 7,455.49-11,183.12-1,908.79

Finding the Fourth Proportional to 7,455.49, 11,183.12 and 1,908.79

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Solution

The fourth proportional to 7,455.49, 11,183.12 and 1,908.79 is: 2,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.49 : 11,183.12 = 1,908.79 : x
  2. Step 2: Convert to fraction form
    7,455.49/11,183.12 = 1,908.79/x
  3. Step 3: Cross multiply
    7,455.49x = 11,183.12 × 1,908.79
  4. Step 4: Simplify right side
    7,455.49x = 21,346,227.62
  5. Step 5: Solve for x
    x = 21,346,227.62/7,455.49
  6. Step 6: Final answer
    x = 2,863.16

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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.