Home / 3,380.32-4,664.55-1,983.07

Finding the Fourth Proportional to 3,380.32, 4,664.55 and 1,983.07

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Solution

The fourth proportional to 3,380.32, 4,664.55 and 1,983.07 is: 2,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.32 : 4,664.55 = 1,983.07 : x
  2. Step 2: Convert to fraction form
    3,380.32/4,664.55 = 1,983.07/x
  3. Step 3: Cross multiply
    3,380.32x = 4,664.55 × 1,983.07
  4. Step 4: Simplify right side
    3,380.32x = 9,250,129.17
  5. Step 5: Solve for x
    x = 9,250,129.17/3,380.32
  6. Step 6: Final answer
    x = 2,736.47

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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.