Home / 3,923.98-5,409.39-2,741.38

Finding the Fourth Proportional to 3,923.98, 5,409.39 and 2,741.38

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Solution

The fourth proportional to 3,923.98, 5,409.39 and 2,741.38 is: 3,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.98 : 5,409.39 = 2,741.38 : x
  2. Step 2: Convert to fraction form
    3,923.98/5,409.39 = 2,741.38/x
  3. Step 3: Cross multiply
    3,923.98x = 5,409.39 × 2,741.38
  4. Step 4: Simplify right side
    3,923.98x = 14,829,193.56
  5. Step 5: Solve for x
    x = 14,829,193.56/3,923.98
  6. Step 6: Final answer
    x = 3,779.12

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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.