Home / 3,981.71-5,971.88-1,059.33

Finding the Fourth Proportional to 3,981.71, 5,971.88 and 1,059.33

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Solution

The fourth proportional to 3,981.71, 5,971.88 and 1,059.33 is: 1,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.71 : 5,971.88 = 1,059.33 : x
  2. Step 2: Convert to fraction form
    3,981.71/5,971.88 = 1,059.33/x
  3. Step 3: Cross multiply
    3,981.71x = 5,971.88 × 1,059.33
  4. Step 4: Simplify right side
    3,981.71x = 6,326,177.13
  5. Step 5: Solve for x
    x = 6,326,177.13/3,981.71
  6. Step 6: Final answer
    x = 1,588.81

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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.