Home / 7,890.30-11,829.96-3,727.98

Finding the Fourth Proportional to 7,890.30, 11,829.96 and 3,727.98

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Solution

The fourth proportional to 7,890.30, 11,829.96 and 3,727.98 is: 5,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.30 : 11,829.96 = 3,727.98 : x
  2. Step 2: Convert to fraction form
    7,890.30/11,829.96 = 3,727.98/x
  3. Step 3: Cross multiply
    7,890.30x = 11,829.96 × 3,727.98
  4. Step 4: Simplify right side
    7,890.30x = 44,101,854.28
  5. Step 5: Solve for x
    x = 44,101,854.28/7,890.30
  6. Step 6: Final answer
    x = 5,589.38

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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.