Home / 2,015.03-2,768.96-1,641.21

Finding the Fourth Proportional to 2,015.03, 2,768.96 and 1,641.21

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Solution

The fourth proportional to 2,015.03, 2,768.96 and 1,641.21 is: 2,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.03 : 2,768.96 = 1,641.21 : x
  2. Step 2: Convert to fraction form
    2,015.03/2,768.96 = 1,641.21/x
  3. Step 3: Cross multiply
    2,015.03x = 2,768.96 × 1,641.21
  4. Step 4: Simplify right side
    2,015.03x = 4,544,436.64
  5. Step 5: Solve for x
    x = 4,544,436.64/2,015.03
  6. Step 6: Final answer
    x = 2,255.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.