Home / 3,490.45-4,816.89-1,998.83

Finding the Fourth Proportional to 3,490.45, 4,816.89 and 1,998.83

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Solution

The fourth proportional to 3,490.45, 4,816.89 and 1,998.83 is: 2,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.45 : 4,816.89 = 1,998.83 : x
  2. Step 2: Convert to fraction form
    3,490.45/4,816.89 = 1,998.83/x
  3. Step 3: Cross multiply
    3,490.45x = 4,816.89 × 1,998.83
  4. Step 4: Simplify right side
    3,490.45x = 9,628,156.28
  5. Step 5: Solve for x
    x = 9,628,156.28/3,490.45
  6. Step 6: Final answer
    x = 2,758.43

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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.