Home / 3,091.28-4,631.34-2,048.81

Finding the Fourth Proportional to 3,091.28, 4,631.34 and 2,048.81

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Solution

The fourth proportional to 3,091.28, 4,631.34 and 2,048.81 is: 3,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.28 : 4,631.34 = 2,048.81 : x
  2. Step 2: Convert to fraction form
    3,091.28/4,631.34 = 2,048.81/x
  3. Step 3: Cross multiply
    3,091.28x = 4,631.34 × 2,048.81
  4. Step 4: Simplify right side
    3,091.28x = 9,488,735.71
  5. Step 5: Solve for x
    x = 9,488,735.71/3,091.28
  6. Step 6: Final answer
    x = 3,069.52

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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.