Home / 3,016.72-4,163.08-1,690.43

Finding the Fourth Proportional to 3,016.72, 4,163.08 and 1,690.43

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Solution

The fourth proportional to 3,016.72, 4,163.08 and 1,690.43 is: 2,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,016.72 : 4,163.08 = 1,690.43 : x
  2. Step 2: Convert to fraction form
    3,016.72/4,163.08 = 1,690.43/x
  3. Step 3: Cross multiply
    3,016.72x = 4,163.08 × 1,690.43
  4. Step 4: Simplify right side
    3,016.72x = 7,037,370.28
  5. Step 5: Solve for x
    x = 7,037,370.28/3,016.72
  6. Step 6: Final answer
    x = 2,332.79

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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.