Home / 7,375.83-11,054.77-3,421.72

Finding the Fourth Proportional to 7,375.83, 11,054.77 and 3,421.72

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Solution

The fourth proportional to 7,375.83, 11,054.77 and 3,421.72 is: 5,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.83 : 11,054.77 = 3,421.72 : x
  2. Step 2: Convert to fraction form
    7,375.83/11,054.77 = 3,421.72/x
  3. Step 3: Cross multiply
    7,375.83x = 11,054.77 × 3,421.72
  4. Step 4: Simplify right side
    7,375.83x = 37,826,327.60
  5. Step 5: Solve for x
    x = 37,826,327.60/7,375.83
  6. Step 6: Final answer
    x = 5,128.42

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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.