Home / 1,948.20-2,922.42-1,399.02

Finding the Fourth Proportional to 1,948.20, 2,922.42 and 1,399.02

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Solution

The fourth proportional to 1,948.20, 2,922.42 and 1,399.02 is: 2,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.20 : 2,922.42 = 1,399.02 : x
  2. Step 2: Convert to fraction form
    1,948.20/2,922.42 = 1,399.02/x
  3. Step 3: Cross multiply
    1,948.20x = 2,922.42 × 1,399.02
  4. Step 4: Simplify right side
    1,948.20x = 4,088,524.03
  5. Step 5: Solve for x
    x = 4,088,524.03/1,948.20
  6. Step 6: Final answer
    x = 2,098.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.