Home / 3,884.45-5,360.54-2,116.05

Finding the Fourth Proportional to 3,884.45, 5,360.54 and 2,116.05

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Solution

The fourth proportional to 3,884.45, 5,360.54 and 2,116.05 is: 2,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.45 : 5,360.54 = 2,116.05 : x
  2. Step 2: Convert to fraction form
    3,884.45/5,360.54 = 2,116.05/x
  3. Step 3: Cross multiply
    3,884.45x = 5,360.54 × 2,116.05
  4. Step 4: Simplify right side
    3,884.45x = 11,343,160.09
  5. Step 5: Solve for x
    x = 11,343,160.09/3,884.45
  6. Step 6: Final answer
    x = 2,920.15

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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.