Home / 3,935.24-5,431.21-2,256.31

Finding the Fourth Proportional to 3,935.24, 5,431.21 and 2,256.31

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Solution

The fourth proportional to 3,935.24, 5,431.21 and 2,256.31 is: 3,114.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.24 : 5,431.21 = 2,256.31 : x
  2. Step 2: Convert to fraction form
    3,935.24/5,431.21 = 2,256.31/x
  3. Step 3: Cross multiply
    3,935.24x = 5,431.21 × 2,256.31
  4. Step 4: Simplify right side
    3,935.24x = 12,254,493.44
  5. Step 5: Solve for x
    x = 12,254,493.44/3,935.24
  6. Step 6: Final answer
    x = 3,114.04

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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.