Home / 3,981.16-5,972.58-1,170.22

Finding the Fourth Proportional to 3,981.16, 5,972.58 and 1,170.22

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Solution

The fourth proportional to 3,981.16, 5,972.58 and 1,170.22 is: 1,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.16 : 5,972.58 = 1,170.22 : x
  2. Step 2: Convert to fraction form
    3,981.16/5,972.58 = 1,170.22/x
  3. Step 3: Cross multiply
    3,981.16x = 5,972.58 × 1,170.22
  4. Step 4: Simplify right side
    3,981.16x = 6,989,232.57
  5. Step 5: Solve for x
    x = 6,989,232.57/3,981.16
  6. Step 6: Final answer
    x = 1,755.58

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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.