Home / 2,639.06-3,954.30-1,540.70

Finding the Fourth Proportional to 2,639.06, 3,954.30 and 1,540.70

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Solution

The fourth proportional to 2,639.06, 3,954.30 and 1,540.70 is: 2,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.06 : 3,954.30 = 1,540.70 : x
  2. Step 2: Convert to fraction form
    2,639.06/3,954.30 = 1,540.70/x
  3. Step 3: Cross multiply
    2,639.06x = 3,954.30 × 1,540.70
  4. Step 4: Simplify right side
    2,639.06x = 6,092,390.01
  5. Step 5: Solve for x
    x = 6,092,390.01/2,639.06
  6. Step 6: Final answer
    x = 2,308.55

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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.