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Finding the Fourth Proportional to 1,887.82, 2,826.93 and 1,578.90

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Solution

The fourth proportional to 1,887.82, 2,826.93 and 1,578.90 is: 2,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.82 : 2,826.93 = 1,578.90 : x
  2. Step 2: Convert to fraction form
    1,887.82/2,826.93 = 1,578.90/x
  3. Step 3: Cross multiply
    1,887.82x = 2,826.93 × 1,578.90
  4. Step 4: Simplify right side
    1,887.82x = 4,463,431.88
  5. Step 5: Solve for x
    x = 4,463,431.88/1,887.82
  6. Step 6: Final answer
    x = 2,364.33

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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.