Home / 3,428.42-4,731.19-1,936.31

Finding the Fourth Proportional to 3,428.42, 4,731.19 and 1,936.31

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Solution

The fourth proportional to 3,428.42, 4,731.19 and 1,936.31 is: 2,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.42 : 4,731.19 = 1,936.31 : x
  2. Step 2: Convert to fraction form
    3,428.42/4,731.19 = 1,936.31/x
  3. Step 3: Cross multiply
    3,428.42x = 4,731.19 × 1,936.31
  4. Step 4: Simplify right side
    3,428.42x = 9,161,022.01
  5. Step 5: Solve for x
    x = 9,161,022.01/3,428.42
  6. Step 6: Final answer
    x = 2,672.09

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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.