Home / 3,282.72-4,917.60-1,986.72

Finding the Fourth Proportional to 3,282.72, 4,917.60 and 1,986.72

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Solution

The fourth proportional to 3,282.72, 4,917.60 and 1,986.72 is: 2,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,282.72 : 4,917.60 = 1,986.72 : x
  2. Step 2: Convert to fraction form
    3,282.72/4,917.60 = 1,986.72/x
  3. Step 3: Cross multiply
    3,282.72x = 4,917.60 × 1,986.72
  4. Step 4: Simplify right side
    3,282.72x = 9,769,894.27
  5. Step 5: Solve for x
    x = 9,769,894.27/3,282.72
  6. Step 6: Final answer
    x = 2,976.16

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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.