Home / 3,884.50-5,360.43-2,116.06

Finding the Fourth Proportional to 3,884.50, 5,360.43 and 2,116.06

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Solution

The fourth proportional to 3,884.50, 5,360.43 and 2,116.06 is: 2,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.50 : 5,360.43 = 2,116.06 : x
  2. Step 2: Convert to fraction form
    3,884.50/5,360.43 = 2,116.06/x
  3. Step 3: Cross multiply
    3,884.50x = 5,360.43 × 2,116.06
  4. Step 4: Simplify right side
    3,884.50x = 11,342,991.51
  5. Step 5: Solve for x
    x = 11,342,991.51/3,884.50
  6. Step 6: Final answer
    x = 2,920.06

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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.