Home / 2,511.58-3,765.99-1,994.89

Finding the Fourth Proportional to 2,511.58, 3,765.99 and 1,994.89

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Solution

The fourth proportional to 2,511.58, 3,765.99 and 1,994.89 is: 2,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.58 : 3,765.99 = 1,994.89 : x
  2. Step 2: Convert to fraction form
    2,511.58/3,765.99 = 1,994.89/x
  3. Step 3: Cross multiply
    2,511.58x = 3,765.99 × 1,994.89
  4. Step 4: Simplify right side
    2,511.58x = 7,512,735.79
  5. Step 5: Solve for x
    x = 7,512,735.79/2,511.58
  6. Step 6: Final answer
    x = 2,991.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.