Home / 3,091.78-4,632.09-2,049.31

Finding the Fourth Proportional to 3,091.78, 4,632.09 and 2,049.31

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Solution

The fourth proportional to 3,091.78, 4,632.09 and 2,049.31 is: 3,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.78 : 4,632.09 = 2,049.31 : x
  2. Step 2: Convert to fraction form
    3,091.78/4,632.09 = 2,049.31/x
  3. Step 3: Cross multiply
    3,091.78x = 4,632.09 × 2,049.31
  4. Step 4: Simplify right side
    3,091.78x = 9,492,588.36
  5. Step 5: Solve for x
    x = 9,492,588.36/3,091.78
  6. Step 6: Final answer
    x = 3,070.27

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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.