Home / 3,480.10-5,219.91-1,631.63

Finding the Fourth Proportional to 3,480.10, 5,219.91 and 1,631.63

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Solution

The fourth proportional to 3,480.10, 5,219.91 and 1,631.63 is: 2,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.10 : 5,219.91 = 1,631.63 : x
  2. Step 2: Convert to fraction form
    3,480.10/5,219.91 = 1,631.63/x
  3. Step 3: Cross multiply
    3,480.10x = 5,219.91 × 1,631.63
  4. Step 4: Simplify right side
    3,480.10x = 8,516,935.65
  5. Step 5: Solve for x
    x = 8,516,935.65/3,480.10
  6. Step 6: Final answer
    x = 2,447.33

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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.