Home / 2,774.21-4,166.01-1,855.67

Finding the Fourth Proportional to 2,774.21, 4,166.01 and 1,855.67

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Solution

The fourth proportional to 2,774.21, 4,166.01 and 1,855.67 is: 2,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.21 : 4,166.01 = 1,855.67 : x
  2. Step 2: Convert to fraction form
    2,774.21/4,166.01 = 1,855.67/x
  3. Step 3: Cross multiply
    2,774.21x = 4,166.01 × 1,855.67
  4. Step 4: Simplify right side
    2,774.21x = 7,730,718.95
  5. Step 5: Solve for x
    x = 7,730,718.95/2,774.21
  6. Step 6: Final answer
    x = 2,786.64

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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.