Home / 2,558.79-3,841.26-2,005.21

Finding the Fourth Proportional to 2,558.79, 3,841.26 and 2,005.21

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Solution

The fourth proportional to 2,558.79, 3,841.26 and 2,005.21 is: 3,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.79 : 3,841.26 = 2,005.21 : x
  2. Step 2: Convert to fraction form
    2,558.79/3,841.26 = 2,005.21/x
  3. Step 3: Cross multiply
    2,558.79x = 3,841.26 × 2,005.21
  4. Step 4: Simplify right side
    2,558.79x = 7,702,517.10
  5. Step 5: Solve for x
    x = 7,702,517.10/2,558.79
  6. Step 6: Final answer
    x = 3,010.22

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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.