Home / 2,748.42-4,120.25-1,267.11

Finding the Fourth Proportional to 2,748.42, 4,120.25 and 1,267.11

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Solution

The fourth proportional to 2,748.42, 4,120.25 and 1,267.11 is: 1,899.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.42 : 4,120.25 = 1,267.11 : x
  2. Step 2: Convert to fraction form
    2,748.42/4,120.25 = 1,267.11/x
  3. Step 3: Cross multiply
    2,748.42x = 4,120.25 × 1,267.11
  4. Step 4: Simplify right side
    2,748.42x = 5,220,803.64
  5. Step 5: Solve for x
    x = 5,220,803.64/2,748.42
  6. Step 6: Final answer
    x = 1,899.57

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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.