Home / 7,383.87-11,075.91-2,643.78

Finding the Fourth Proportional to 7,383.87, 11,075.91 and 2,643.78

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Solution

The fourth proportional to 7,383.87, 11,075.91 and 2,643.78 is: 3,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,383.87 : 11,075.91 = 2,643.78 : x
  2. Step 2: Convert to fraction form
    7,383.87/11,075.91 = 2,643.78/x
  3. Step 3: Cross multiply
    7,383.87x = 11,075.91 × 2,643.78
  4. Step 4: Simplify right side
    7,383.87x = 29,282,269.34
  5. Step 5: Solve for x
    x = 29,282,269.34/7,383.87
  6. Step 6: Final answer
    x = 3,965.71

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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.