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Finding the Fourth Proportional to 2,804.11, 3,869.10 and 1,755.56

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Solution

The fourth proportional to 2,804.11, 3,869.10 and 1,755.56 is: 2,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.11 : 3,869.10 = 1,755.56 : x
  2. Step 2: Convert to fraction form
    2,804.11/3,869.10 = 1,755.56/x
  3. Step 3: Cross multiply
    2,804.11x = 3,869.10 × 1,755.56
  4. Step 4: Simplify right side
    2,804.11x = 6,792,446.87
  5. Step 5: Solve for x
    x = 6,792,446.87/2,804.11
  6. Step 6: Final answer
    x = 2,422.32

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1.5x scale

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.