Home / 3,187.14-4,399.44-1,861.26

Finding the Fourth Proportional to 3,187.14, 4,399.44 and 1,861.26

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Solution

The fourth proportional to 3,187.14, 4,399.44 and 1,861.26 is: 2,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.14 : 4,399.44 = 1,861.26 : x
  2. Step 2: Convert to fraction form
    3,187.14/4,399.44 = 1,861.26/x
  3. Step 3: Cross multiply
    3,187.14x = 4,399.44 × 1,861.26
  4. Step 4: Simplify right side
    3,187.14x = 8,188,501.69
  5. Step 5: Solve for x
    x = 8,188,501.69/3,187.14
  6. Step 6: Final answer
    x = 2,569.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.