Home / 2,965.08-4,091.62-1,638.76

Finding the Fourth Proportional to 2,965.08, 4,091.62 and 1,638.76

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Solution

The fourth proportional to 2,965.08, 4,091.62 and 1,638.76 is: 2,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.08 : 4,091.62 = 1,638.76 : x
  2. Step 2: Convert to fraction form
    2,965.08/4,091.62 = 1,638.76/x
  3. Step 3: Cross multiply
    2,965.08x = 4,091.62 × 1,638.76
  4. Step 4: Simplify right side
    2,965.08x = 6,705,183.19
  5. Step 5: Solve for x
    x = 6,705,183.19/2,965.08
  6. Step 6: Final answer
    x = 2,261.38

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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.