Home / 2,019.30-3,028.50-558.66

Finding the Fourth Proportional to 2,019.30, 3,028.50 and 558.66

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Solution

The fourth proportional to 2,019.30, 3,028.50 and 558.66 is: 837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.30 : 3,028.50 = 558.66 : x
  2. Step 2: Convert to fraction form
    2,019.30/3,028.50 = 558.66/x
  3. Step 3: Cross multiply
    2,019.30x = 3,028.50 × 558.66
  4. Step 4: Simplify right side
    2,019.30x = 1,691,901.81
  5. Step 5: Solve for x
    x = 1,691,901.81/2,019.30
  6. Step 6: Final answer
    x = 837.87

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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.