Home / 3,884.63-5,361.29-2,312.72

Finding the Fourth Proportional to 3,884.63, 5,361.29 and 2,312.72

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Solution

The fourth proportional to 3,884.63, 5,361.29 and 2,312.72 is: 3,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.63 : 5,361.29 = 2,312.72 : x
  2. Step 2: Convert to fraction form
    3,884.63/5,361.29 = 2,312.72/x
  3. Step 3: Cross multiply
    3,884.63x = 5,361.29 × 2,312.72
  4. Step 4: Simplify right side
    3,884.63x = 12,399,153.02
  5. Step 5: Solve for x
    x = 12,399,153.02/3,884.63
  6. Step 6: Final answer
    x = 3,191.85

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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.