Home / 2,906.89-4,011.46-1,580.61

Finding the Fourth Proportional to 2,906.89, 4,011.46 and 1,580.61

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Solution

The fourth proportional to 2,906.89, 4,011.46 and 1,580.61 is: 2,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.89 : 4,011.46 = 1,580.61 : x
  2. Step 2: Convert to fraction form
    2,906.89/4,011.46 = 1,580.61/x
  3. Step 3: Cross multiply
    2,906.89x = 4,011.46 × 1,580.61
  4. Step 4: Simplify right side
    2,906.89x = 6,340,564.88
  5. Step 5: Solve for x
    x = 6,340,564.88/2,906.89
  6. Step 6: Final answer
    x = 2,181.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.