Home / 2,975.21-4,105.83-1,648.97

Finding the Fourth Proportional to 2,975.21, 4,105.83 and 1,648.97

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Solution

The fourth proportional to 2,975.21, 4,105.83 and 1,648.97 is: 2,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.21 : 4,105.83 = 1,648.97 : x
  2. Step 2: Convert to fraction form
    2,975.21/4,105.83 = 1,648.97/x
  3. Step 3: Cross multiply
    2,975.21x = 4,105.83 × 1,648.97
  4. Step 4: Simplify right side
    2,975.21x = 6,770,369.97
  5. Step 5: Solve for x
    x = 6,770,369.97/2,975.21
  6. Step 6: Final answer
    x = 2,275.60

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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.