Home / 3,428.44-4,731.45-1,936.32

Finding the Fourth Proportional to 3,428.44, 4,731.45 and 1,936.32

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Solution

The fourth proportional to 3,428.44, 4,731.45 and 1,936.32 is: 2,672.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.44 : 4,731.45 = 1,936.32 : x
  2. Step 2: Convert to fraction form
    3,428.44/4,731.45 = 1,936.32/x
  3. Step 3: Cross multiply
    3,428.44x = 4,731.45 × 1,936.32
  4. Step 4: Simplify right side
    3,428.44x = 9,161,576.26
  5. Step 5: Solve for x
    x = 9,161,576.26/3,428.44
  6. Step 6: Final answer
    x = 2,672.23

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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.