Home / 4,815.93-6,647.75-2,828.15

Finding the Fourth Proportional to 4,815.93, 6,647.75 and 2,828.15

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Solution

The fourth proportional to 4,815.93, 6,647.75 and 2,828.15 is: 3,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.93 : 6,647.75 = 2,828.15 : x
  2. Step 2: Convert to fraction form
    4,815.93/6,647.75 = 2,828.15/x
  3. Step 3: Cross multiply
    4,815.93x = 6,647.75 × 2,828.15
  4. Step 4: Simplify right side
    4,815.93x = 18,800,786.78
  5. Step 5: Solve for x
    x = 18,800,786.78/4,815.93
  6. Step 6: Final answer
    x = 3,903.87

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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.