Home / 5,163.86-7,126.04-2,805.99

Finding the Fourth Proportional to 5,163.86, 7,126.04 and 2,805.99

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Solution

The fourth proportional to 5,163.86, 7,126.04 and 2,805.99 is: 3,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.86 : 7,126.04 = 2,805.99 : x
  2. Step 2: Convert to fraction form
    5,163.86/7,126.04 = 2,805.99/x
  3. Step 3: Cross multiply
    5,163.86x = 7,126.04 × 2,805.99
  4. Step 4: Simplify right side
    5,163.86x = 19,995,603.99
  5. Step 5: Solve for x
    x = 19,995,603.99/5,163.86
  6. Step 6: Final answer
    x = 3,872.22

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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.