Home / 3,581.32-5,371.26-1,115.74

Finding the Fourth Proportional to 3,581.32, 5,371.26 and 1,115.74

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Solution

The fourth proportional to 3,581.32, 5,371.26 and 1,115.74 is: 1,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.32 : 5,371.26 = 1,115.74 : x
  2. Step 2: Convert to fraction form
    3,581.32/5,371.26 = 1,115.74/x
  3. Step 3: Cross multiply
    3,581.32x = 5,371.26 × 1,115.74
  4. Step 4: Simplify right side
    3,581.32x = 5,992,929.63
  5. Step 5: Solve for x
    x = 5,992,929.63/3,581.32
  6. Step 6: Final answer
    x = 1,673.39

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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.