Home / 3,173.09-4,378.82-1,775.84

Finding the Fourth Proportional to 3,173.09, 4,378.82 and 1,775.84

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Solution

The fourth proportional to 3,173.09, 4,378.82 and 1,775.84 is: 2,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.09 : 4,378.82 = 1,775.84 : x
  2. Step 2: Convert to fraction form
    3,173.09/4,378.82 = 1,775.84/x
  3. Step 3: Cross multiply
    3,173.09x = 4,378.82 × 1,775.84
  4. Step 4: Simplify right side
    3,173.09x = 7,776,052.94
  5. Step 5: Solve for x
    x = 7,776,052.94/3,173.09
  6. Step 6: Final answer
    x = 2,450.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.