Home / 2,786.84-4,180.32-2,054.20

Finding the Fourth Proportional to 2,786.84, 4,180.32 and 2,054.20

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Solution

The fourth proportional to 2,786.84, 4,180.32 and 2,054.20 is: 3,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.84 : 4,180.32 = 2,054.20 : x
  2. Step 2: Convert to fraction form
    2,786.84/4,180.32 = 2,054.20/x
  3. Step 3: Cross multiply
    2,786.84x = 4,180.32 × 2,054.20
  4. Step 4: Simplify right side
    2,786.84x = 8,587,213.34
  5. Step 5: Solve for x
    x = 8,587,213.34/2,786.84
  6. Step 6: Final answer
    x = 3,081.34

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1.5x scale

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.