Home / 3,428.20-4,731.06-1,936.18

Finding the Fourth Proportional to 3,428.20, 4,731.06 and 1,936.18

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Solution

The fourth proportional to 3,428.20, 4,731.06 and 1,936.18 is: 2,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.20 : 4,731.06 = 1,936.18 : x
  2. Step 2: Convert to fraction form
    3,428.20/4,731.06 = 1,936.18/x
  3. Step 3: Cross multiply
    3,428.20x = 4,731.06 × 1,936.18
  4. Step 4: Simplify right side
    3,428.20x = 9,160,183.75
  5. Step 5: Solve for x
    x = 9,160,183.75/3,428.20
  6. Step 6: Final answer
    x = 2,672.01

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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.