Home / 3,910.89-5,395.35-2,494.20

Finding the Fourth Proportional to 3,910.89, 5,395.35 and 2,494.20

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Solution

The fourth proportional to 3,910.89, 5,395.35 and 2,494.20 is: 3,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.89 : 5,395.35 = 2,494.20 : x
  2. Step 2: Convert to fraction form
    3,910.89/5,395.35 = 2,494.20/x
  3. Step 3: Cross multiply
    3,910.89x = 5,395.35 × 2,494.20
  4. Step 4: Simplify right side
    3,910.89x = 13,457,081.97
  5. Step 5: Solve for x
    x = 13,457,081.97/3,910.89
  6. Step 6: Final answer
    x = 3,440.93

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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.