Home / 4,936.78-6,812.40-2,698.18

Finding the Fourth Proportional to 4,936.78, 6,812.40 and 2,698.18

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Solution

The fourth proportional to 4,936.78, 6,812.40 and 2,698.18 is: 3,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.78 : 6,812.40 = 2,698.18 : x
  2. Step 2: Convert to fraction form
    4,936.78/6,812.40 = 2,698.18/x
  3. Step 3: Cross multiply
    4,936.78x = 6,812.40 × 2,698.18
  4. Step 4: Simplify right side
    4,936.78x = 18,381,081.43
  5. Step 5: Solve for x
    x = 18,381,081.43/4,936.78
  6. Step 6: Final answer
    x = 3,723.29

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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.