Home / 2,755.18-4,129.26-1,291.11

Finding the Fourth Proportional to 2,755.18, 4,129.26 and 1,291.11

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Solution

The fourth proportional to 2,755.18, 4,129.26 and 1,291.11 is: 1,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.18 : 4,129.26 = 1,291.11 : x
  2. Step 2: Convert to fraction form
    2,755.18/4,129.26 = 1,291.11/x
  3. Step 3: Cross multiply
    2,755.18x = 4,129.26 × 1,291.11
  4. Step 4: Simplify right side
    2,755.18x = 5,331,328.88
  5. Step 5: Solve for x
    x = 5,331,328.88/2,755.18
  6. Step 6: Final answer
    x = 1,935.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.