Home / 3,112.72-4,644.80-2,836.72

Finding the Fourth Proportional to 3,112.72, 4,644.80 and 2,836.72

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Solution

The fourth proportional to 3,112.72, 4,644.80 and 2,836.72 is: 4,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.72 : 4,644.80 = 2,836.72 : x
  2. Step 2: Convert to fraction form
    3,112.72/4,644.80 = 2,836.72/x
  3. Step 3: Cross multiply
    3,112.72x = 4,644.80 × 2,836.72
  4. Step 4: Simplify right side
    3,112.72x = 13,175,997.06
  5. Step 5: Solve for x
    x = 13,175,997.06/3,112.72
  6. Step 6: Final answer
    x = 4,232.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.