Home / 2,961.25-4,074.33-2,888.35

Finding the Fourth Proportional to 2,961.25, 4,074.33 and 2,888.35

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Solution

The fourth proportional to 2,961.25, 4,074.33 and 2,888.35 is: 3,974.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.25 : 4,074.33 = 2,888.35 : x
  2. Step 2: Convert to fraction form
    2,961.25/4,074.33 = 2,888.35/x
  3. Step 3: Cross multiply
    2,961.25x = 4,074.33 × 2,888.35
  4. Step 4: Simplify right side
    2,961.25x = 11,768,091.06
  5. Step 5: Solve for x
    x = 11,768,091.06/2,961.25
  6. Step 6: Final answer
    x = 3,974.03

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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.