Home / 3,489.81-5,235.44-1,181.25

Finding the Fourth Proportional to 3,489.81, 5,235.44 and 1,181.25

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Solution

The fourth proportional to 3,489.81, 5,235.44 and 1,181.25 is: 1,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.81 : 5,235.44 = 1,181.25 : x
  2. Step 2: Convert to fraction form
    3,489.81/5,235.44 = 1,181.25/x
  3. Step 3: Cross multiply
    3,489.81x = 5,235.44 × 1,181.25
  4. Step 4: Simplify right side
    3,489.81x = 6,184,357.59
  5. Step 5: Solve for x
    x = 6,184,357.59/3,489.81
  6. Step 6: Final answer
    x = 1,772.12

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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.