Home / 4,075.65-6,121.68-3,960.81

Finding the Fourth Proportional to 4,075.65, 6,121.68 and 3,960.81

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Solution

The fourth proportional to 4,075.65, 6,121.68 and 3,960.81 is: 5,949.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075.65 : 6,121.68 = 3,960.81 : x
  2. Step 2: Convert to fraction form
    4,075.65/6,121.68 = 3,960.81/x
  3. Step 3: Cross multiply
    4,075.65x = 6,121.68 × 3,960.81
  4. Step 4: Simplify right side
    4,075.65x = 24,246,811.36
  5. Step 5: Solve for x
    x = 24,246,811.36/4,075.65
  6. Step 6: Final answer
    x = 5,949.19

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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.