Home / 3,398.20-4,686.60-2,202.10

Finding the Fourth Proportional to 3,398.20, 4,686.60 and 2,202.10

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Solution

The fourth proportional to 3,398.20, 4,686.60 and 2,202.10 is: 3,037.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.20 : 4,686.60 = 2,202.10 : x
  2. Step 2: Convert to fraction form
    3,398.20/4,686.60 = 2,202.10/x
  3. Step 3: Cross multiply
    3,398.20x = 4,686.60 × 2,202.10
  4. Step 4: Simplify right side
    3,398.20x = 10,320,361.86
  5. Step 5: Solve for x
    x = 10,320,361.86/3,398.20
  6. Step 6: Final answer
    x = 3,037.01

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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.