Home / 3,015.12-4,163.46-1,897.92

Finding the Fourth Proportional to 3,015.12, 4,163.46 and 1,897.92

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Solution

The fourth proportional to 3,015.12, 4,163.46 and 1,897.92 is: 2,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.12 : 4,163.46 = 1,897.92 : x
  2. Step 2: Convert to fraction form
    3,015.12/4,163.46 = 1,897.92/x
  3. Step 3: Cross multiply
    3,015.12x = 4,163.46 × 1,897.92
  4. Step 4: Simplify right side
    3,015.12x = 7,901,914.00
  5. Step 5: Solve for x
    x = 7,901,914.00/3,015.12
  6. Step 6: Final answer
    x = 2,620.76

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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.