Home / 3,884.98-5,361.12-2,116.54

Finding the Fourth Proportional to 3,884.98, 5,361.12 and 2,116.54

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Solution

The fourth proportional to 3,884.98, 5,361.12 and 2,116.54 is: 2,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.98 : 5,361.12 = 2,116.54 : x
  2. Step 2: Convert to fraction form
    3,884.98/5,361.12 = 2,116.54/x
  3. Step 3: Cross multiply
    3,884.98x = 5,361.12 × 2,116.54
  4. Step 4: Simplify right side
    3,884.98x = 11,347,024.92
  5. Step 5: Solve for x
    x = 11,347,024.92/3,884.98
  6. Step 6: Final answer
    x = 2,920.74

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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.