Home / 3,884.57-5,360.77-2,116.18

Finding the Fourth Proportional to 3,884.57, 5,360.77 and 2,116.18

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Solution

The fourth proportional to 3,884.57, 5,360.77 and 2,116.18 is: 2,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.57 : 5,360.77 = 2,116.18 : x
  2. Step 2: Convert to fraction form
    3,884.57/5,360.77 = 2,116.18/x
  3. Step 3: Cross multiply
    3,884.57x = 5,360.77 × 2,116.18
  4. Step 4: Simplify right side
    3,884.57x = 11,344,354.26
  5. Step 5: Solve for x
    x = 11,344,354.26/3,884.57
  6. Step 6: Final answer
    x = 2,920.36

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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.