Home / 3,107.70-4,647.78-2,763.45

Finding the Fourth Proportional to 3,107.70, 4,647.78 and 2,763.45

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Solution

The fourth proportional to 3,107.70, 4,647.78 and 2,763.45 is: 4,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.70 : 4,647.78 = 2,763.45 : x
  2. Step 2: Convert to fraction form
    3,107.70/4,647.78 = 2,763.45/x
  3. Step 3: Cross multiply
    3,107.70x = 4,647.78 × 2,763.45
  4. Step 4: Simplify right side
    3,107.70x = 12,843,907.64
  5. Step 5: Solve for x
    x = 12,843,907.64/3,107.70
  6. Step 6: Final answer
    x = 4,132.93

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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.