Home / 2,564.79-3,848.42-1,394.75

Finding the Fourth Proportional to 2,564.79, 3,848.42 and 1,394.75

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Solution

The fourth proportional to 2,564.79, 3,848.42 and 1,394.75 is: 2,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.79 : 3,848.42 = 1,394.75 : x
  2. Step 2: Convert to fraction form
    2,564.79/3,848.42 = 1,394.75/x
  3. Step 3: Cross multiply
    2,564.79x = 3,848.42 × 1,394.75
  4. Step 4: Simplify right side
    2,564.79x = 5,367,557.58
  5. Step 5: Solve for x
    x = 5,367,557.58/2,564.79
  6. Step 6: Final answer
    x = 2,092.79

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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.