Home / 5,412.92-8,119.38-1,308.92

Finding the Fourth Proportional to 5,412.92, 8,119.38 and 1,308.92

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Solution

The fourth proportional to 5,412.92, 8,119.38 and 1,308.92 is: 1,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.92 : 8,119.38 = 1,308.92 : x
  2. Step 2: Convert to fraction form
    5,412.92/8,119.38 = 1,308.92/x
  3. Step 3: Cross multiply
    5,412.92x = 8,119.38 × 1,308.92
  4. Step 4: Simplify right side
    5,412.92x = 10,627,618.87
  5. Step 5: Solve for x
    x = 10,627,618.87/5,412.92
  6. Step 6: Final answer
    x = 1,963.38

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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.