Home / 2,770.44-4,148.10-2,118.12

Finding the Fourth Proportional to 2,770.44, 4,148.10 and 2,118.12

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Solution

The fourth proportional to 2,770.44, 4,148.10 and 2,118.12 is: 3,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.44 : 4,148.10 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    2,770.44/4,148.10 = 2,118.12/x
  3. Step 3: Cross multiply
    2,770.44x = 4,148.10 × 2,118.12
  4. Step 4: Simplify right side
    2,770.44x = 8,786,173.57
  5. Step 5: Solve for x
    x = 8,786,173.57/2,770.44
  6. Step 6: Final answer
    x = 3,171.40

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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.