Home / 7,738.06-11,605.78-2,190.14

Finding the Fourth Proportional to 7,738.06, 11,605.78 and 2,190.14

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Solution

The fourth proportional to 7,738.06, 11,605.78 and 2,190.14 is: 3,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.06 : 11,605.78 = 2,190.14 : x
  2. Step 2: Convert to fraction form
    7,738.06/11,605.78 = 2,190.14/x
  3. Step 3: Cross multiply
    7,738.06x = 11,605.78 × 2,190.14
  4. Step 4: Simplify right side
    7,738.06x = 25,418,283.01
  5. Step 5: Solve for x
    x = 25,418,283.01/7,738.06
  6. Step 6: Final answer
    x = 3,284.84

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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.