Home / 2,019.45-3,029.18-558.57

Finding the Fourth Proportional to 2,019.45, 3,029.18 and 558.57

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Solution

The fourth proportional to 2,019.45, 3,029.18 and 558.57 is: 837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.45 : 3,029.18 = 558.57 : x
  2. Step 2: Convert to fraction form
    2,019.45/3,029.18 = 558.57/x
  3. Step 3: Cross multiply
    2,019.45x = 3,029.18 × 558.57
  4. Step 4: Simplify right side
    2,019.45x = 1,692,003.74
  5. Step 5: Solve for x
    x = 1,692,003.74/2,019.45
  6. Step 6: Final answer
    x = 837.85

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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.