Home / 3,779.19-5,214.66-2,100.42

Finding the Fourth Proportional to 3,779.19, 5,214.66 and 2,100.42

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Solution

The fourth proportional to 3,779.19, 5,214.66 and 2,100.42 is: 2,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.19 : 5,214.66 = 2,100.42 : x
  2. Step 2: Convert to fraction form
    3,779.19/5,214.66 = 2,100.42/x
  3. Step 3: Cross multiply
    3,779.19x = 5,214.66 × 2,100.42
  4. Step 4: Simplify right side
    3,779.19x = 10,952,976.16
  5. Step 5: Solve for x
    x = 10,952,976.16/3,779.19
  6. Step 6: Final answer
    x = 2,898.23

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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.