Home / 7,782.35-10,739.88-4,379.96

Finding the Fourth Proportional to 7,782.35, 10,739.88 and 4,379.96

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Solution

The fourth proportional to 7,782.35, 10,739.88 and 4,379.96 is: 6,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.35 : 10,739.88 = 4,379.96 : x
  2. Step 2: Convert to fraction form
    7,782.35/10,739.88 = 4,379.96/x
  3. Step 3: Cross multiply
    7,782.35x = 10,739.88 × 4,379.96
  4. Step 4: Simplify right side
    7,782.35x = 47,040,191.11
  5. Step 5: Solve for x
    x = 47,040,191.11/7,782.35
  6. Step 6: Final answer
    x = 6,044.48

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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.