Home / 4,828.20-6,661.80-2,839.56

Finding the Fourth Proportional to 4,828.20, 6,661.80 and 2,839.56

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Solution

The fourth proportional to 4,828.20, 6,661.80 and 2,839.56 is: 3,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,828.20 : 6,661.80 = 2,839.56 : x
  2. Step 2: Convert to fraction form
    4,828.20/6,661.80 = 2,839.56/x
  3. Step 3: Cross multiply
    4,828.20x = 6,661.80 × 2,839.56
  4. Step 4: Simplify right side
    4,828.20x = 18,916,580.81
  5. Step 5: Solve for x
    x = 18,916,580.81/4,828.20
  6. Step 6: Final answer
    x = 3,917.94

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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.