Home / 2,211.92-3,051.29-1,372.35

Finding the Fourth Proportional to 2,211.92, 3,051.29 and 1,372.35

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Solution

The fourth proportional to 2,211.92, 3,051.29 and 1,372.35 is: 1,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.92 : 3,051.29 = 1,372.35 : x
  2. Step 2: Convert to fraction form
    2,211.92/3,051.29 = 1,372.35/x
  3. Step 3: Cross multiply
    2,211.92x = 3,051.29 × 1,372.35
  4. Step 4: Simplify right side
    2,211.92x = 4,187,430.97
  5. Step 5: Solve for x
    x = 4,187,430.97/2,211.92
  6. Step 6: Final answer
    x = 1,893.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.