Home / 2,742.98-3,780.75-1,945.27

Finding the Fourth Proportional to 2,742.98, 3,780.75 and 1,945.27

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Solution

The fourth proportional to 2,742.98, 3,780.75 and 1,945.27 is: 2,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.98 : 3,780.75 = 1,945.27 : x
  2. Step 2: Convert to fraction form
    2,742.98/3,780.75 = 1,945.27/x
  3. Step 3: Cross multiply
    2,742.98x = 3,780.75 × 1,945.27
  4. Step 4: Simplify right side
    2,742.98x = 7,354,579.55
  5. Step 5: Solve for x
    x = 7,354,579.55/2,742.98
  6. Step 6: Final answer
    x = 2,681.24

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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.