Home / 3,371.40-5,057.40-1,291.32

Finding the Fourth Proportional to 3,371.40, 5,057.40 and 1,291.32

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Solution

The fourth proportional to 3,371.40, 5,057.40 and 1,291.32 is: 1,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.40 : 5,057.40 = 1,291.32 : x
  2. Step 2: Convert to fraction form
    3,371.40/5,057.40 = 1,291.32/x
  3. Step 3: Cross multiply
    3,371.40x = 5,057.40 × 1,291.32
  4. Step 4: Simplify right side
    3,371.40x = 6,530,721.77
  5. Step 5: Solve for x
    x = 6,530,721.77/3,371.40
  6. Step 6: Final answer
    x = 1,937.09

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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.