Home / 5,621.67-7,757.84-3,231.77

Finding the Fourth Proportional to 5,621.67, 7,757.84 and 3,231.77

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Solution

The fourth proportional to 5,621.67, 7,757.84 and 3,231.77 is: 4,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.67 : 7,757.84 = 3,231.77 : x
  2. Step 2: Convert to fraction form
    5,621.67/7,757.84 = 3,231.77/x
  3. Step 3: Cross multiply
    5,621.67x = 7,757.84 × 3,231.77
  4. Step 4: Simplify right side
    5,621.67x = 25,071,499.63
  5. Step 5: Solve for x
    x = 25,071,499.63/5,621.67
  6. Step 6: Final answer
    x = 4,459.80

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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.