Home / 3,172.82-4,378.26-1,756.50

Finding the Fourth Proportional to 3,172.82, 4,378.26 and 1,756.50

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Solution

The fourth proportional to 3,172.82, 4,378.26 and 1,756.50 is: 2,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.82 : 4,378.26 = 1,756.50 : x
  2. Step 2: Convert to fraction form
    3,172.82/4,378.26 = 1,756.50/x
  3. Step 3: Cross multiply
    3,172.82x = 4,378.26 × 1,756.50
  4. Step 4: Simplify right side
    3,172.82x = 7,690,413.69
  5. Step 5: Solve for x
    x = 7,690,413.69/3,172.82
  6. Step 6: Final answer
    x = 2,423.84

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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.