Home / 1,918.08-2,893.05-1,689.84

Finding the Fourth Proportional to 1,918.08, 2,893.05 and 1,689.84

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Solution

The fourth proportional to 1,918.08, 2,893.05 and 1,689.84 is: 2,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.08 : 2,893.05 = 1,689.84 : x
  2. Step 2: Convert to fraction form
    1,918.08/2,893.05 = 1,689.84/x
  3. Step 3: Cross multiply
    1,918.08x = 2,893.05 × 1,689.84
  4. Step 4: Simplify right side
    1,918.08x = 4,888,791.61
  5. Step 5: Solve for x
    x = 4,888,791.61/1,918.08
  6. Step 6: Final answer
    x = 2,548.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.