Home / 3,511.42-5,265.80-1,289.52

Finding the Fourth Proportional to 3,511.42, 5,265.80 and 1,289.52

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Solution

The fourth proportional to 3,511.42, 5,265.80 and 1,289.52 is: 1,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.42 : 5,265.80 = 1,289.52 : x
  2. Step 2: Convert to fraction form
    3,511.42/5,265.80 = 1,289.52/x
  3. Step 3: Cross multiply
    3,511.42x = 5,265.80 × 1,289.52
  4. Step 4: Simplify right side
    3,511.42x = 6,790,354.42
  5. Step 5: Solve for x
    x = 6,790,354.42/3,511.42
  6. Step 6: Final answer
    x = 1,933.79

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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.