Home / 2,774.16-3,828.42-1,890.36

Finding the Fourth Proportional to 2,774.16, 3,828.42 and 1,890.36

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Solution

The fourth proportional to 2,774.16, 3,828.42 and 1,890.36 is: 2,608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.16 : 3,828.42 = 1,890.36 : x
  2. Step 2: Convert to fraction form
    2,774.16/3,828.42 = 1,890.36/x
  3. Step 3: Cross multiply
    2,774.16x = 3,828.42 × 1,890.36
  4. Step 4: Simplify right side
    2,774.16x = 7,237,092.03
  5. Step 5: Solve for x
    x = 7,237,092.03/2,774.16
  6. Step 6: Final answer
    x = 2,608.75

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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.