Home / 5,163.82-7,126.40-2,925.80

Finding the Fourth Proportional to 5,163.82, 7,126.40 and 2,925.80

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Solution

The fourth proportional to 5,163.82, 7,126.40 and 2,925.80 is: 4,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.82 : 7,126.40 = 2,925.80 : x
  2. Step 2: Convert to fraction form
    5,163.82/7,126.40 = 2,925.80/x
  3. Step 3: Cross multiply
    5,163.82x = 7,126.40 × 2,925.80
  4. Step 4: Simplify right side
    5,163.82x = 20,850,421.12
  5. Step 5: Solve for x
    x = 20,850,421.12/5,163.82
  6. Step 6: Final answer
    x = 4,037.79

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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.