Home / 3,015.27-4,161.06-1,670.79

Finding the Fourth Proportional to 3,015.27, 4,161.06 and 1,670.79

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Solution

The fourth proportional to 3,015.27, 4,161.06 and 1,670.79 is: 2,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.27 : 4,161.06 = 1,670.79 : x
  2. Step 2: Convert to fraction form
    3,015.27/4,161.06 = 1,670.79/x
  3. Step 3: Cross multiply
    3,015.27x = 4,161.06 × 1,670.79
  4. Step 4: Simplify right side
    3,015.27x = 6,952,257.44
  5. Step 5: Solve for x
    x = 6,952,257.44/3,015.27
  6. Step 6: Final answer
    x = 2,305.68

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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.