Home / 7,840.84-11,763.42-2,650.36

Finding the Fourth Proportional to 7,840.84, 11,763.42 and 2,650.36

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Solution

The fourth proportional to 7,840.84, 11,763.42 and 2,650.36 is: 3,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.84 : 11,763.42 = 2,650.36 : x
  2. Step 2: Convert to fraction form
    7,840.84/11,763.42 = 2,650.36/x
  3. Step 3: Cross multiply
    7,840.84x = 11,763.42 × 2,650.36
  4. Step 4: Simplify right side
    7,840.84x = 31,177,297.83
  5. Step 5: Solve for x
    x = 31,177,297.83/7,840.84
  6. Step 6: Final answer
    x = 3,976.27

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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.