Home / 5,163.46-7,125.56-2,805.58

Finding the Fourth Proportional to 5,163.46, 7,125.56 and 2,805.58

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Solution

The fourth proportional to 5,163.46, 7,125.56 and 2,805.58 is: 3,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.46 : 7,125.56 = 2,805.58 : x
  2. Step 2: Convert to fraction form
    5,163.46/7,125.56 = 2,805.58/x
  3. Step 3: Cross multiply
    5,163.46x = 7,125.56 × 2,805.58
  4. Step 4: Simplify right side
    5,163.46x = 19,991,328.62
  5. Step 5: Solve for x
    x = 19,991,328.62/5,163.46
  6. Step 6: Final answer
    x = 3,871.69

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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.