Home / 3,981.12-5,971.73-1,059.45

Finding the Fourth Proportional to 3,981.12, 5,971.73 and 1,059.45

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Solution

The fourth proportional to 3,981.12, 5,971.73 and 1,059.45 is: 1,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.12 : 5,971.73 = 1,059.45 : x
  2. Step 2: Convert to fraction form
    3,981.12/5,971.73 = 1,059.45/x
  3. Step 3: Cross multiply
    3,981.12x = 5,971.73 × 1,059.45
  4. Step 4: Simplify right side
    3,981.12x = 6,326,721.66
  5. Step 5: Solve for x
    x = 6,326,721.66/3,981.12
  6. Step 6: Final answer
    x = 1,589.18

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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.