Home / 3,426.61-5,137.75-2,906.79

Finding the Fourth Proportional to 3,426.61, 5,137.75 and 2,906.79

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Solution

The fourth proportional to 3,426.61, 5,137.75 and 2,906.79 is: 4,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.61 : 5,137.75 = 2,906.79 : x
  2. Step 2: Convert to fraction form
    3,426.61/5,137.75 = 2,906.79/x
  3. Step 3: Cross multiply
    3,426.61x = 5,137.75 × 2,906.79
  4. Step 4: Simplify right side
    3,426.61x = 14,934,345.79
  5. Step 5: Solve for x
    x = 14,934,345.79/3,426.61
  6. Step 6: Final answer
    x = 4,358.35

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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.