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Finding the Fourth Proportional to 3,792.83, 5,239.08 and 2,907.09

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Solution

The fourth proportional to 3,792.83, 5,239.08 and 2,907.09 is: 4,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.83 : 5,239.08 = 2,907.09 : x
  2. Step 2: Convert to fraction form
    3,792.83/5,239.08 = 2,907.09/x
  3. Step 3: Cross multiply
    3,792.83x = 5,239.08 × 2,907.09
  4. Step 4: Simplify right side
    3,792.83x = 15,230,477.08
  5. Step 5: Solve for x
    x = 15,230,477.08/3,792.83
  6. Step 6: Final answer
    x = 4,015.60

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1.5x scale

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.