Home / 7,351.72-11,028.06-2,421.80

Finding the Fourth Proportional to 7,351.72, 11,028.06 and 2,421.80

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Solution

The fourth proportional to 7,351.72, 11,028.06 and 2,421.80 is: 3,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.72 : 11,028.06 = 2,421.80 : x
  2. Step 2: Convert to fraction form
    7,351.72/11,028.06 = 2,421.80/x
  3. Step 3: Cross multiply
    7,351.72x = 11,028.06 × 2,421.80
  4. Step 4: Simplify right side
    7,351.72x = 26,707,755.71
  5. Step 5: Solve for x
    x = 26,707,755.71/7,351.72
  6. Step 6: Final answer
    x = 3,632.86

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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.