Home / 5,163.22-7,125.30-2,805.36

Finding the Fourth Proportional to 5,163.22, 7,125.30 and 2,805.36

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Solution

The fourth proportional to 5,163.22, 7,125.30 and 2,805.36 is: 3,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.22 : 7,125.30 = 2,805.36 : x
  2. Step 2: Convert to fraction form
    5,163.22/7,125.30 = 2,805.36/x
  3. Step 3: Cross multiply
    5,163.22x = 7,125.30 × 2,805.36
  4. Step 4: Simplify right side
    5,163.22x = 19,989,066.82
  5. Step 5: Solve for x
    x = 19,989,066.82/5,163.22
  6. Step 6: Final answer
    x = 3,871.43

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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.