Home / 2,965.16-4,091.86-1,638.92

Finding the Fourth Proportional to 2,965.16, 4,091.86 and 1,638.92

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Solution

The fourth proportional to 2,965.16, 4,091.86 and 1,638.92 is: 2,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.16 : 4,091.86 = 1,638.92 : x
  2. Step 2: Convert to fraction form
    2,965.16/4,091.86 = 1,638.92/x
  3. Step 3: Cross multiply
    2,965.16x = 4,091.86 × 1,638.92
  4. Step 4: Simplify right side
    2,965.16x = 6,706,231.19
  5. Step 5: Solve for x
    x = 6,706,231.19/2,965.16
  6. Step 6: Final answer
    x = 2,261.68

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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.