Home / 3,190.41-4,783.28-2,147.81

Finding the Fourth Proportional to 3,190.41, 4,783.28 and 2,147.81

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Solution

The fourth proportional to 3,190.41, 4,783.28 and 2,147.81 is: 3,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.41 : 4,783.28 = 2,147.81 : x
  2. Step 2: Convert to fraction form
    3,190.41/4,783.28 = 2,147.81/x
  3. Step 3: Cross multiply
    3,190.41x = 4,783.28 × 2,147.81
  4. Step 4: Simplify right side
    3,190.41x = 10,273,541.96
  5. Step 5: Solve for x
    x = 10,273,541.96/3,190.41
  6. Step 6: Final answer
    x = 3,220.13

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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.