Home / 3,768.86-5,203.62-2,883.12

Finding the Fourth Proportional to 3,768.86, 5,203.62 and 2,883.12

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Solution

The fourth proportional to 3,768.86, 5,203.62 and 2,883.12 is: 3,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.86 : 5,203.62 = 2,883.12 : x
  2. Step 2: Convert to fraction form
    3,768.86/5,203.62 = 2,883.12/x
  3. Step 3: Cross multiply
    3,768.86x = 5,203.62 × 2,883.12
  4. Step 4: Simplify right side
    3,768.86x = 15,002,660.89
  5. Step 5: Solve for x
    x = 15,002,660.89/3,768.86
  6. Step 6: Final answer
    x = 3,980.69

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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.