Home / 1,815.92-2,725.28-1,330.23

Finding the Fourth Proportional to 1,815.92, 2,725.28 and 1,330.23

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Solution

The fourth proportional to 1,815.92, 2,725.28 and 1,330.23 is: 1,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.92 : 2,725.28 = 1,330.23 : x
  2. Step 2: Convert to fraction form
    1,815.92/2,725.28 = 1,330.23/x
  3. Step 3: Cross multiply
    1,815.92x = 2,725.28 × 1,330.23
  4. Step 4: Simplify right side
    1,815.92x = 3,625,249.21
  5. Step 5: Solve for x
    x = 3,625,249.21/1,815.92
  6. Step 6: Final answer
    x = 1,996.37

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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.