Home / 2,742.43-3,782.49-1,903.14

Finding the Fourth Proportional to 2,742.43, 3,782.49 and 1,903.14

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Solution

The fourth proportional to 2,742.43, 3,782.49 and 1,903.14 is: 2,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.43 : 3,782.49 = 1,903.14 : x
  2. Step 2: Convert to fraction form
    2,742.43/3,782.49 = 1,903.14/x
  3. Step 3: Cross multiply
    2,742.43x = 3,782.49 × 1,903.14
  4. Step 4: Simplify right side
    2,742.43x = 7,198,608.02
  5. Step 5: Solve for x
    x = 7,198,608.02/2,742.43
  6. Step 6: Final answer
    x = 2,624.90

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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.