Home / 2,807.12-4,211.78-1,163.25

Finding the Fourth Proportional to 2,807.12, 4,211.78 and 1,163.25

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Solution

The fourth proportional to 2,807.12, 4,211.78 and 1,163.25 is: 1,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.12 : 4,211.78 = 1,163.25 : x
  2. Step 2: Convert to fraction form
    2,807.12/4,211.78 = 1,163.25/x
  3. Step 3: Cross multiply
    2,807.12x = 4,211.78 × 1,163.25
  4. Step 4: Simplify right side
    2,807.12x = 4,899,347.27
  5. Step 5: Solve for x
    x = 4,899,347.27/2,807.12
  6. Step 6: Final answer
    x = 1,745.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.