Home / 2,540.08-3,808.68-999.28

Finding the Fourth Proportional to 2,540.08, 3,808.68 and 999.28

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Solution

The fourth proportional to 2,540.08, 3,808.68 and 999.28 is: 1,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.08 : 3,808.68 = 999.28 : x
  2. Step 2: Convert to fraction form
    2,540.08/3,808.68 = 999.28/x
  3. Step 3: Cross multiply
    2,540.08x = 3,808.68 × 999.28
  4. Step 4: Simplify right side
    2,540.08x = 3,805,937.75
  5. Step 5: Solve for x
    x = 3,805,937.75/2,540.08
  6. Step 6: Final answer
    x = 1,498.35

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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.