Home / 3,191.75-4,404.67-1,775.55

Finding the Fourth Proportional to 3,191.75, 4,404.67 and 1,775.55

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Solution

The fourth proportional to 3,191.75, 4,404.67 and 1,775.55 is: 2,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.75 : 4,404.67 = 1,775.55 : x
  2. Step 2: Convert to fraction form
    3,191.75/4,404.67 = 1,775.55/x
  3. Step 3: Cross multiply
    3,191.75x = 4,404.67 × 1,775.55
  4. Step 4: Simplify right side
    3,191.75x = 7,820,711.82
  5. Step 5: Solve for x
    x = 7,820,711.82/3,191.75
  6. Step 6: Final answer
    x = 2,450.29

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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.