Home / 7,421.09-11,135.97-2,744.39

Finding the Fourth Proportional to 7,421.09, 11,135.97 and 2,744.39

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Solution

The fourth proportional to 7,421.09, 11,135.97 and 2,744.39 is: 4,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.09 : 11,135.97 = 2,744.39 : x
  2. Step 2: Convert to fraction form
    7,421.09/11,135.97 = 2,744.39/x
  3. Step 3: Cross multiply
    7,421.09x = 11,135.97 × 2,744.39
  4. Step 4: Simplify right side
    7,421.09x = 30,561,389.03
  5. Step 5: Solve for x
    x = 30,561,389.03/7,421.09
  6. Step 6: Final answer
    x = 4,118.18

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1.5x scale

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.