Home / 2,887.93-3,985.79-1,896.08

Finding the Fourth Proportional to 2,887.93, 3,985.79 and 1,896.08

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Solution

The fourth proportional to 2,887.93, 3,985.79 and 1,896.08 is: 2,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.93 : 3,985.79 = 1,896.08 : x
  2. Step 2: Convert to fraction form
    2,887.93/3,985.79 = 1,896.08/x
  3. Step 3: Cross multiply
    2,887.93x = 3,985.79 × 1,896.08
  4. Step 4: Simplify right side
    2,887.93x = 7,557,367.22
  5. Step 5: Solve for x
    x = 7,557,367.22/2,887.93
  6. Step 6: Final answer
    x = 2,616.88

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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.