Home / 3,428.67-4,731.84-1,936.83

Finding the Fourth Proportional to 3,428.67, 4,731.84 and 1,936.83

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Solution

The fourth proportional to 3,428.67, 4,731.84 and 1,936.83 is: 2,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.67 : 4,731.84 = 1,936.83 : x
  2. Step 2: Convert to fraction form
    3,428.67/4,731.84 = 1,936.83/x
  3. Step 3: Cross multiply
    3,428.67x = 4,731.84 × 1,936.83
  4. Step 4: Simplify right side
    3,428.67x = 9,164,769.67
  5. Step 5: Solve for x
    x = 9,164,769.67/3,428.67
  6. Step 6: Final answer
    x = 2,672.98

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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.