Home / 5,401.26-8,105.40-2,806.02

Finding the Fourth Proportional to 5,401.26, 8,105.40 and 2,806.02

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Solution

The fourth proportional to 5,401.26, 8,105.40 and 2,806.02 is: 4,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.26 : 8,105.40 = 2,806.02 : x
  2. Step 2: Convert to fraction form
    5,401.26/8,105.40 = 2,806.02/x
  3. Step 3: Cross multiply
    5,401.26x = 8,105.40 × 2,806.02
  4. Step 4: Simplify right side
    5,401.26x = 22,743,914.51
  5. Step 5: Solve for x
    x = 22,743,914.51/5,401.26
  6. Step 6: Final answer
    x = 4,210.85

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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.