Home / 3,380.03-4,664.63-1,982.78

Finding the Fourth Proportional to 3,380.03, 4,664.63 and 1,982.78

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Solution

The fourth proportional to 3,380.03, 4,664.63 and 1,982.78 is: 2,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.03 : 4,664.63 = 1,982.78 : x
  2. Step 2: Convert to fraction form
    3,380.03/4,664.63 = 1,982.78/x
  3. Step 3: Cross multiply
    3,380.03x = 4,664.63 × 1,982.78
  4. Step 4: Simplify right side
    3,380.03x = 9,248,925.16
  5. Step 5: Solve for x
    x = 9,248,925.16/3,380.03
  6. Step 6: Final answer
    x = 2,736.34

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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.