Home / 3,173.10-4,378.80-1,775.85

Finding the Fourth Proportional to 3,173.10, 4,378.80 and 1,775.85

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Solution

The fourth proportional to 3,173.10, 4,378.80 and 1,775.85 is: 2,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.10 : 4,378.80 = 1,775.85 : x
  2. Step 2: Convert to fraction form
    3,173.10/4,378.80 = 1,775.85/x
  3. Step 3: Cross multiply
    3,173.10x = 4,378.80 × 1,775.85
  4. Step 4: Simplify right side
    3,173.10x = 7,776,091.98
  5. Step 5: Solve for x
    x = 7,776,091.98/3,173.10
  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.