Home / 3,581.93-5,371.84-1,390.14

Finding the Fourth Proportional to 3,581.93, 5,371.84 and 1,390.14

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Solution

The fourth proportional to 3,581.93, 5,371.84 and 1,390.14 is: 2,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.93 : 5,371.84 = 1,390.14 : x
  2. Step 2: Convert to fraction form
    3,581.93/5,371.84 = 1,390.14/x
  3. Step 3: Cross multiply
    3,581.93x = 5,371.84 × 1,390.14
  4. Step 4: Simplify right side
    3,581.93x = 7,467,609.66
  5. Step 5: Solve for x
    x = 7,467,609.66/3,581.93
  6. Step 6: Final answer
    x = 2,084.80

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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.