Home / 2,768.12-4,153.72-2,153.06

Finding the Fourth Proportional to 2,768.12, 4,153.72 and 2,153.06

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Solution

The fourth proportional to 2,768.12, 4,153.72 and 2,153.06 is: 3,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.12 : 4,153.72 = 2,153.06 : x
  2. Step 2: Convert to fraction form
    2,768.12/4,153.72 = 2,153.06/x
  3. Step 3: Cross multiply
    2,768.12x = 4,153.72 × 2,153.06
  4. Step 4: Simplify right side
    2,768.12x = 8,943,208.38
  5. Step 5: Solve for x
    x = 8,943,208.38/2,768.12
  6. Step 6: Final answer
    x = 3,230.79

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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.