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Finding the Fourth Proportional to 1,884.56, 2,826.57 and 910.40

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Solution

The fourth proportional to 1,884.56, 2,826.57 and 910.40 is: 1,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.56 : 2,826.57 = 910.40 : x
  2. Step 2: Convert to fraction form
    1,884.56/2,826.57 = 910.40/x
  3. Step 3: Cross multiply
    1,884.56x = 2,826.57 × 910.40
  4. Step 4: Simplify right side
    1,884.56x = 2,573,309.33
  5. Step 5: Solve for x
    x = 2,573,309.33/1,884.56
  6. Step 6: Final answer
    x = 1,365.47

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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.