Home / 1,942.54-2,679.35-1,878.26

Finding the Fourth Proportional to 1,942.54, 2,679.35 and 1,878.26

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Solution

The fourth proportional to 1,942.54, 2,679.35 and 1,878.26 is: 2,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.54 : 2,679.35 = 1,878.26 : x
  2. Step 2: Convert to fraction form
    1,942.54/2,679.35 = 1,878.26/x
  3. Step 3: Cross multiply
    1,942.54x = 2,679.35 × 1,878.26
  4. Step 4: Simplify right side
    1,942.54x = 5,032,493.14
  5. Step 5: Solve for x
    x = 5,032,493.14/1,942.54
  6. Step 6: Final answer
    x = 2,590.68

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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.