Home / 4,129.57-6,195.62-1,318.33

Finding the Fourth Proportional to 4,129.57, 6,195.62 and 1,318.33

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Solution

The fourth proportional to 4,129.57, 6,195.62 and 1,318.33 is: 1,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.57 : 6,195.62 = 1,318.33 : x
  2. Step 2: Convert to fraction form
    4,129.57/6,195.62 = 1,318.33/x
  3. Step 3: Cross multiply
    4,129.57x = 6,195.62 × 1,318.33
  4. Step 4: Simplify right side
    4,129.57x = 8,167,871.71
  5. Step 5: Solve for x
    x = 8,167,871.71/4,129.57
  6. Step 6: Final answer
    x = 1,977.90

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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.