Home / 3,187.86-4,399.80-2,009.32

Finding the Fourth Proportional to 3,187.86, 4,399.80 and 2,009.32

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Solution

The fourth proportional to 3,187.86, 4,399.80 and 2,009.32 is: 2,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.86 : 4,399.80 = 2,009.32 : x
  2. Step 2: Convert to fraction form
    3,187.86/4,399.80 = 2,009.32/x
  3. Step 3: Cross multiply
    3,187.86x = 4,399.80 × 2,009.32
  4. Step 4: Simplify right side
    3,187.86x = 8,840,606.14
  5. Step 5: Solve for x
    x = 8,840,606.14/3,187.86
  6. Step 6: Final answer
    x = 2,773.21

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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.