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Finding the Fourth Proportional to 5,755.05, 8,629.74 and 1,858.95

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Solution

The fourth proportional to 5,755.05, 8,629.74 and 1,858.95 is: 2,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.05 : 8,629.74 = 1,858.95 : x
  2. Step 2: Convert to fraction form
    5,755.05/8,629.74 = 1,858.95/x
  3. Step 3: Cross multiply
    5,755.05x = 8,629.74 × 1,858.95
  4. Step 4: Simplify right side
    5,755.05x = 16,042,255.17
  5. Step 5: Solve for x
    x = 16,042,255.17/5,755.05
  6. Step 6: Final answer
    x = 2,787.51

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1.5x scale

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.