Home / 3,384.91-5,078.58-2,458.90

Finding the Fourth Proportional to 3,384.91, 5,078.58 and 2,458.90

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Solution

The fourth proportional to 3,384.91, 5,078.58 and 2,458.90 is: 3,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.91 : 5,078.58 = 2,458.90 : x
  2. Step 2: Convert to fraction form
    3,384.91/5,078.58 = 2,458.90/x
  3. Step 3: Cross multiply
    3,384.91x = 5,078.58 × 2,458.90
  4. Step 4: Simplify right side
    3,384.91x = 12,487,720.36
  5. Step 5: Solve for x
    x = 12,487,720.36/3,384.91
  6. Step 6: Final answer
    x = 3,689.23

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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.