Home / 4,129.68-6,195.12-1,664.31

Finding the Fourth Proportional to 4,129.68, 6,195.12 and 1,664.31

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Solution

The fourth proportional to 4,129.68, 6,195.12 and 1,664.31 is: 2,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.68 : 6,195.12 = 1,664.31 : x
  2. Step 2: Convert to fraction form
    4,129.68/6,195.12 = 1,664.31/x
  3. Step 3: Cross multiply
    4,129.68x = 6,195.12 × 1,664.31
  4. Step 4: Simplify right side
    4,129.68x = 10,310,617.16
  5. Step 5: Solve for x
    x = 10,310,617.16/4,129.68
  6. Step 6: Final answer
    x = 2,496.71

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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.