Home / 3,188.30-4,782.45-1,241.87

Finding the Fourth Proportional to 3,188.30, 4,782.45 and 1,241.87

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Solution

The fourth proportional to 3,188.30, 4,782.45 and 1,241.87 is: 1,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.30 : 4,782.45 = 1,241.87 : x
  2. Step 2: Convert to fraction form
    3,188.30/4,782.45 = 1,241.87/x
  3. Step 3: Cross multiply
    3,188.30x = 4,782.45 × 1,241.87
  4. Step 4: Simplify right side
    3,188.30x = 5,939,181.18
  5. Step 5: Solve for x
    x = 5,939,181.18/3,188.30
  6. Step 6: Final answer
    x = 1,862.81

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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.