Home / 3,280.92-4,921.41-1,029.45

Finding the Fourth Proportional to 3,280.92, 4,921.41 and 1,029.45

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Solution

The fourth proportional to 3,280.92, 4,921.41 and 1,029.45 is: 1,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.92 : 4,921.41 = 1,029.45 : x
  2. Step 2: Convert to fraction form
    3,280.92/4,921.41 = 1,029.45/x
  3. Step 3: Cross multiply
    3,280.92x = 4,921.41 × 1,029.45
  4. Step 4: Simplify right side
    3,280.92x = 5,066,340.38
  5. Step 5: Solve for x
    x = 5,066,340.38/3,280.92
  6. Step 6: Final answer
    x = 1,544.19

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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.