Home / 2,770.14-4,156.74-2,155.08

Finding the Fourth Proportional to 2,770.14, 4,156.74 and 2,155.08

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Solution

The fourth proportional to 2,770.14, 4,156.74 and 2,155.08 is: 3,233.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.14 : 4,156.74 = 2,155.08 : x
  2. Step 2: Convert to fraction form
    2,770.14/4,156.74 = 2,155.08/x
  3. Step 3: Cross multiply
    2,770.14x = 4,156.74 × 2,155.08
  4. Step 4: Simplify right side
    2,770.14x = 8,958,107.24
  5. Step 5: Solve for x
    x = 8,958,107.24/2,770.14
  6. Step 6: Final answer
    x = 3,233.81

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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.