Home / 2,019.40-3,029.09-558.54

Finding the Fourth Proportional to 2,019.40, 3,029.09 and 558.54

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Solution

The fourth proportional to 2,019.40, 3,029.09 and 558.54 is: 837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.40 : 3,029.09 = 558.54 : x
  2. Step 2: Convert to fraction form
    2,019.40/3,029.09 = 558.54/x
  3. Step 3: Cross multiply
    2,019.40x = 3,029.09 × 558.54
  4. Step 4: Simplify right side
    2,019.40x = 1,691,867.93
  5. Step 5: Solve for x
    x = 1,691,867.93/2,019.40
  6. Step 6: Final answer
    x = 837.81

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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.