Home / 3,981.24-5,971.34-1,059.36

Finding the Fourth Proportional to 3,981.24, 5,971.34 and 1,059.36

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Solution

The fourth proportional to 3,981.24, 5,971.34 and 1,059.36 is: 1,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.24 : 5,971.34 = 1,059.36 : x
  2. Step 2: Convert to fraction form
    3,981.24/5,971.34 = 1,059.36/x
  3. Step 3: Cross multiply
    3,981.24x = 5,971.34 × 1,059.36
  4. Step 4: Simplify right side
    3,981.24x = 6,325,793.45
  5. Step 5: Solve for x
    x = 6,325,793.45/3,981.24
  6. Step 6: Final answer
    x = 1,588.90

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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.