Home / 3,190.49-4,787.76-1,242.71

Finding the Fourth Proportional to 3,190.49, 4,787.76 and 1,242.71

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Solution

The fourth proportional to 3,190.49, 4,787.76 and 1,242.71 is: 1,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.49 : 4,787.76 = 1,242.71 : x
  2. Step 2: Convert to fraction form
    3,190.49/4,787.76 = 1,242.71/x
  3. Step 3: Cross multiply
    3,190.49x = 4,787.76 × 1,242.71
  4. Step 4: Simplify right side
    3,190.49x = 5,949,797.23
  5. Step 5: Solve for x
    x = 5,949,797.23/3,190.49
  6. Step 6: Final answer
    x = 1,864.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.