Home / 2,019.28-3,028.36-558.32

Finding the Fourth Proportional to 2,019.28, 3,028.36 and 558.32

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Solution

The fourth proportional to 2,019.28, 3,028.36 and 558.32 is: 837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.28 : 3,028.36 = 558.32 : x
  2. Step 2: Convert to fraction form
    2,019.28/3,028.36 = 558.32/x
  3. Step 3: Cross multiply
    2,019.28x = 3,028.36 × 558.32
  4. Step 4: Simplify right side
    2,019.28x = 1,690,793.96
  5. Step 5: Solve for x
    x = 1,690,793.96/2,019.28
  6. Step 6: Final answer
    x = 837.33

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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.