Home / 2,788.80-3,848.94-1,892.58

Finding the Fourth Proportional to 2,788.80, 3,848.94 and 1,892.58

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Solution

The fourth proportional to 2,788.80, 3,848.94 and 1,892.58 is: 2,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.80 : 3,848.94 = 1,892.58 : x
  2. Step 2: Convert to fraction form
    2,788.80/3,848.94 = 1,892.58/x
  3. Step 3: Cross multiply
    2,788.80x = 3,848.94 × 1,892.58
  4. Step 4: Simplify right side
    2,788.80x = 7,284,426.87
  5. Step 5: Solve for x
    x = 7,284,426.87/2,788.80
  6. Step 6: Final answer
    x = 2,612.03

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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.