Home / 3,855.09-5,319.69-2,262.06

Finding the Fourth Proportional to 3,855.09, 5,319.69 and 2,262.06

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Solution

The fourth proportional to 3,855.09, 5,319.69 and 2,262.06 is: 3,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.09 : 5,319.69 = 2,262.06 : x
  2. Step 2: Convert to fraction form
    3,855.09/5,319.69 = 2,262.06/x
  3. Step 3: Cross multiply
    3,855.09x = 5,319.69 × 2,262.06
  4. Step 4: Simplify right side
    3,855.09x = 12,033,457.96
  5. Step 5: Solve for x
    x = 12,033,457.96/3,855.09
  6. Step 6: Final answer
    x = 3,121.45

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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.