Home / 5,163.81-7,126.17-2,806.05

Finding the Fourth Proportional to 5,163.81, 7,126.17 and 2,806.05

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Solution

The fourth proportional to 5,163.81, 7,126.17 and 2,806.05 is: 3,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.81 : 7,126.17 = 2,806.05 : x
  2. Step 2: Convert to fraction form
    5,163.81/7,126.17 = 2,806.05/x
  3. Step 3: Cross multiply
    5,163.81x = 7,126.17 × 2,806.05
  4. Step 4: Simplify right side
    5,163.81x = 19,996,389.33
  5. Step 5: Solve for x
    x = 19,996,389.33/5,163.81
  6. Step 6: Final answer
    x = 3,872.41

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1.5x scale

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.