Home / 3,190.31-4,784.09-1,242.05

Finding the Fourth Proportional to 3,190.31, 4,784.09 and 1,242.05

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Solution

The fourth proportional to 3,190.31, 4,784.09 and 1,242.05 is: 1,862.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.31 : 4,784.09 = 1,242.05 : x
  2. Step 2: Convert to fraction form
    3,190.31/4,784.09 = 1,242.05/x
  3. Step 3: Cross multiply
    3,190.31x = 4,784.09 × 1,242.05
  4. Step 4: Simplify right side
    3,190.31x = 5,942,084.73
  5. Step 5: Solve for x
    x = 5,942,084.73/3,190.31
  6. Step 6: Final answer
    x = 1,862.54

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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.