Home / 3,981.32-5,972.09-1,059.62

Finding the Fourth Proportional to 3,981.32, 5,972.09 and 1,059.62

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Solution

The fourth proportional to 3,981.32, 5,972.09 and 1,059.62 is: 1,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.32 : 5,972.09 = 1,059.62 : x
  2. Step 2: Convert to fraction form
    3,981.32/5,972.09 = 1,059.62/x
  3. Step 3: Cross multiply
    3,981.32x = 5,972.09 × 1,059.62
  4. Step 4: Simplify right side
    3,981.32x = 6,328,155.64
  5. Step 5: Solve for x
    x = 6,328,155.64/3,981.32
  6. Step 6: Final answer
    x = 1,589.46

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1.5x scale

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.