Home / 2,775.21-3,825.34-1,878.67

Finding the Fourth Proportional to 2,775.21, 3,825.34 and 1,878.67

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Solution

The fourth proportional to 2,775.21, 3,825.34 and 1,878.67 is: 2,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.21 : 3,825.34 = 1,878.67 : x
  2. Step 2: Convert to fraction form
    2,775.21/3,825.34 = 1,878.67/x
  3. Step 3: Cross multiply
    2,775.21x = 3,825.34 × 1,878.67
  4. Step 4: Simplify right side
    2,775.21x = 7,186,537.24
  5. Step 5: Solve for x
    x = 7,186,537.24/2,775.21
  6. Step 6: Final answer
    x = 2,589.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.