Home / 2,768.09-3,818.61-1,648.26

Finding the Fourth Proportional to 2,768.09, 3,818.61 and 1,648.26

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Solution

The fourth proportional to 2,768.09, 3,818.61 and 1,648.26 is: 2,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.09 : 3,818.61 = 1,648.26 : x
  2. Step 2: Convert to fraction form
    2,768.09/3,818.61 = 1,648.26/x
  3. Step 3: Cross multiply
    2,768.09x = 3,818.61 × 1,648.26
  4. Step 4: Simplify right side
    2,768.09x = 6,294,062.12
  5. Step 5: Solve for x
    x = 6,294,062.12/2,768.09
  6. Step 6: Final answer
    x = 2,273.80

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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.