Home / 3,783.36-5,224.32-2,790.36

Finding the Fourth Proportional to 3,783.36, 5,224.32 and 2,790.36

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Solution

The fourth proportional to 3,783.36, 5,224.32 and 2,790.36 is: 3,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.36 : 5,224.32 = 2,790.36 : x
  2. Step 2: Convert to fraction form
    3,783.36/5,224.32 = 2,790.36/x
  3. Step 3: Cross multiply
    3,783.36x = 5,224.32 × 2,790.36
  4. Step 4: Simplify right side
    3,783.36x = 14,577,733.56
  5. Step 5: Solve for x
    x = 14,577,733.56/3,783.36
  6. Step 6: Final answer
    x = 3,853.12

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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.