Home / 3,811.67-5,264.22-2,619.81

Finding the Fourth Proportional to 3,811.67, 5,264.22 and 2,619.81

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Solution

The fourth proportional to 3,811.67, 5,264.22 and 2,619.81 is: 3,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.67 : 5,264.22 = 2,619.81 : x
  2. Step 2: Convert to fraction form
    3,811.67/5,264.22 = 2,619.81/x
  3. Step 3: Cross multiply
    3,811.67x = 5,264.22 × 2,619.81
  4. Step 4: Simplify right side
    3,811.67x = 13,791,266.02
  5. Step 5: Solve for x
    x = 13,791,266.02/3,811.67
  6. Step 6: Final answer
    x = 3,618.16

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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.