Home / 3,678.16-5,075.97-2,792.42

Finding the Fourth Proportional to 3,678.16, 5,075.97 and 2,792.42

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Solution

The fourth proportional to 3,678.16, 5,075.97 and 2,792.42 is: 3,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.16 : 5,075.97 = 2,792.42 : x
  2. Step 2: Convert to fraction form
    3,678.16/5,075.97 = 2,792.42/x
  3. Step 3: Cross multiply
    3,678.16x = 5,075.97 × 2,792.42
  4. Step 4: Simplify right side
    3,678.16x = 14,174,240.15
  5. Step 5: Solve for x
    x = 14,174,240.15/3,678.16
  6. Step 6: Final answer
    x = 3,853.63

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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.