Home / 3,910.95-5,395.09-2,651.58

Finding the Fourth Proportional to 3,910.95, 5,395.09 and 2,651.58

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Solution

The fourth proportional to 3,910.95, 5,395.09 and 2,651.58 is: 3,657.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.95 : 5,395.09 = 2,651.58 : x
  2. Step 2: Convert to fraction form
    3,910.95/5,395.09 = 2,651.58/x
  3. Step 3: Cross multiply
    3,910.95x = 5,395.09 × 2,651.58
  4. Step 4: Simplify right side
    3,910.95x = 14,305,512.74
  5. Step 5: Solve for x
    x = 14,305,512.74/3,910.95
  6. Step 6: Final answer
    x = 3,657.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.