Home / 3,779.96-5,216.57-2,101.38

Finding the Fourth Proportional to 3,779.96, 5,216.57 and 2,101.38

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Solution

The fourth proportional to 3,779.96, 5,216.57 and 2,101.38 is: 2,900.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.96 : 5,216.57 = 2,101.38 : x
  2. Step 2: Convert to fraction form
    3,779.96/5,216.57 = 2,101.38/x
  3. Step 3: Cross multiply
    3,779.96x = 5,216.57 × 2,101.38
  4. Step 4: Simplify right side
    3,779.96x = 10,961,995.87
  5. Step 5: Solve for x
    x = 10,961,995.87/3,779.96
  6. Step 6: Final answer
    x = 2,900.03

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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.