Home / 6,212.70-9,320.79-1,830.06

Finding the Fourth Proportional to 6,212.70, 9,320.79 and 1,830.06

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Solution

The fourth proportional to 6,212.70, 9,320.79 and 1,830.06 is: 2,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.70 : 9,320.79 = 1,830.06 : x
  2. Step 2: Convert to fraction form
    6,212.70/9,320.79 = 1,830.06/x
  3. Step 3: Cross multiply
    6,212.70x = 9,320.79 × 1,830.06
  4. Step 4: Simplify right side
    6,212.70x = 17,057,604.95
  5. Step 5: Solve for x
    x = 17,057,604.95/6,212.70
  6. Step 6: Final answer
    x = 2,745.60

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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.