Home / 3,619.37-5,430.95-1,975.61

Finding the Fourth Proportional to 3,619.37, 5,430.95 and 1,975.61

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Solution

The fourth proportional to 3,619.37, 5,430.95 and 1,975.61 is: 2,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.37 : 5,430.95 = 1,975.61 : x
  2. Step 2: Convert to fraction form
    3,619.37/5,430.95 = 1,975.61/x
  3. Step 3: Cross multiply
    3,619.37x = 5,430.95 × 1,975.61
  4. Step 4: Simplify right side
    3,619.37x = 10,729,450.24
  5. Step 5: Solve for x
    x = 10,729,450.24/3,619.37
  6. Step 6: Final answer
    x = 2,964.45

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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.