Home / 6,664.57-9,991.45-2,771.89

Finding the Fourth Proportional to 6,664.57, 9,991.45 and 2,771.89

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Solution

The fourth proportional to 6,664.57, 9,991.45 and 2,771.89 is: 4,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.57 : 9,991.45 = 2,771.89 : x
  2. Step 2: Convert to fraction form
    6,664.57/9,991.45 = 2,771.89/x
  3. Step 3: Cross multiply
    6,664.57x = 9,991.45 × 2,771.89
  4. Step 4: Simplify right side
    6,664.57x = 27,695,178.83
  5. Step 5: Solve for x
    x = 27,695,178.83/6,664.57
  6. Step 6: Final answer
    x = 4,155.59

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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.