Home / 6,551.78-9,824.65-2,108.61

Finding the Fourth Proportional to 6,551.78, 9,824.65 and 2,108.61

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Solution

The fourth proportional to 6,551.78, 9,824.65 and 2,108.61 is: 3,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.78 : 9,824.65 = 2,108.61 : x
  2. Step 2: Convert to fraction form
    6,551.78/9,824.65 = 2,108.61/x
  3. Step 3: Cross multiply
    6,551.78x = 9,824.65 × 2,108.61
  4. Step 4: Simplify right side
    6,551.78x = 20,716,349.96
  5. Step 5: Solve for x
    x = 20,716,349.96/6,551.78
  6. Step 6: Final answer
    x = 3,161.94

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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.