Home / 3,779.51-5,216.15-2,101.08

Finding the Fourth Proportional to 3,779.51, 5,216.15 and 2,101.08

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Solution

The fourth proportional to 3,779.51, 5,216.15 and 2,101.08 is: 2,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.51 : 5,216.15 = 2,101.08 : x
  2. Step 2: Convert to fraction form
    3,779.51/5,216.15 = 2,101.08/x
  3. Step 3: Cross multiply
    3,779.51x = 5,216.15 × 2,101.08
  4. Step 4: Simplify right side
    3,779.51x = 10,959,548.44
  5. Step 5: Solve for x
    x = 10,959,548.44/3,779.51
  6. Step 6: Final answer
    x = 2,899.73

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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.