Home / 3,163.25-4,742.72-1,931.09

Finding the Fourth Proportional to 3,163.25, 4,742.72 and 1,931.09

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Solution

The fourth proportional to 3,163.25, 4,742.72 and 1,931.09 is: 2,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.25 : 4,742.72 = 1,931.09 : x
  2. Step 2: Convert to fraction form
    3,163.25/4,742.72 = 1,931.09/x
  3. Step 3: Cross multiply
    3,163.25x = 4,742.72 × 1,931.09
  4. Step 4: Simplify right side
    3,163.25x = 9,158,609.51
  5. Step 5: Solve for x
    x = 9,158,609.51/3,163.25
  6. Step 6: Final answer
    x = 2,895.32

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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.