Home / 7,582.82-11,364.96-3,421.74

Finding the Fourth Proportional to 7,582.82, 11,364.96 and 3,421.74

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Solution

The fourth proportional to 7,582.82, 11,364.96 and 3,421.74 is: 5,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582.82 : 11,364.96 = 3,421.74 : x
  2. Step 2: Convert to fraction form
    7,582.82/11,364.96 = 3,421.74/x
  3. Step 3: Cross multiply
    7,582.82x = 11,364.96 × 3,421.74
  4. Step 4: Simplify right side
    7,582.82x = 38,887,974.43
  5. Step 5: Solve for x
    x = 38,887,974.43/7,582.82
  6. Step 6: Final answer
    x = 5,128.44

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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.