Home / 3,976.64-5,480-2,983.04

Finding the Fourth Proportional to 3,976.64, 5,480 and 2,983.04

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Solution

The fourth proportional to 3,976.64, 5,480 and 2,983.04 is: 4,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.64 : 5,480 = 2,983.04 : x
  2. Step 2: Convert to fraction form
    3,976.64/5,480 = 2,983.04/x
  3. Step 3: Cross multiply
    3,976.64x = 5,480 × 2,983.04
  4. Step 4: Simplify right side
    3,976.64x = 16,347,059.20
  5. Step 5: Solve for x
    x = 16,347,059.20/3,976.64
  6. Step 6: Final answer
    x = 4,110.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.