Home / 2,540.04-3,809.40-1,078.44

Finding the Fourth Proportional to 2,540.04, 3,809.40 and 1,078.44

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Solution

The fourth proportional to 2,540.04, 3,809.40 and 1,078.44 is: 1,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.04 : 3,809.40 = 1,078.44 : x
  2. Step 2: Convert to fraction form
    2,540.04/3,809.40 = 1,078.44/x
  3. Step 3: Cross multiply
    2,540.04x = 3,809.40 × 1,078.44
  4. Step 4: Simplify right side
    2,540.04x = 4,108,209.34
  5. Step 5: Solve for x
    x = 4,108,209.34/2,540.04
  6. Step 6: Final answer
    x = 1,617.38

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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.