Home / 3,428.53-4,731.21-1,936.56

Finding the Fourth Proportional to 3,428.53, 4,731.21 and 1,936.56

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Solution

The fourth proportional to 3,428.53, 4,731.21 and 1,936.56 is: 2,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.53 : 4,731.21 = 1,936.56 : x
  2. Step 2: Convert to fraction form
    3,428.53/4,731.21 = 1,936.56/x
  3. Step 3: Cross multiply
    3,428.53x = 4,731.21 × 1,936.56
  4. Step 4: Simplify right side
    3,428.53x = 9,162,263.17
  5. Step 5: Solve for x
    x = 9,162,263.17/3,428.53
  6. Step 6: Final answer
    x = 2,672.36

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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.