Home / 4,111.22-6,158.19-1,921.70

Finding the Fourth Proportional to 4,111.22, 6,158.19 and 1,921.70

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Solution

The fourth proportional to 4,111.22, 6,158.19 and 1,921.70 is: 2,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.22 : 6,158.19 = 1,921.70 : x
  2. Step 2: Convert to fraction form
    4,111.22/6,158.19 = 1,921.70/x
  3. Step 3: Cross multiply
    4,111.22x = 6,158.19 × 1,921.70
  4. Step 4: Simplify right side
    4,111.22x = 11,834,193.72
  5. Step 5: Solve for x
    x = 11,834,193.72/4,111.22
  6. Step 6: Final answer
    x = 2,878.51

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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.