Home / 4,811.37-6,640.80-2,822.57

Finding the Fourth Proportional to 4,811.37, 6,640.80 and 2,822.57

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Solution

The fourth proportional to 4,811.37, 6,640.80 and 2,822.57 is: 3,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.37 : 6,640.80 = 2,822.57 : x
  2. Step 2: Convert to fraction form
    4,811.37/6,640.80 = 2,822.57/x
  3. Step 3: Cross multiply
    4,811.37x = 6,640.80 × 2,822.57
  4. Step 4: Simplify right side
    4,811.37x = 18,744,089.65
  5. Step 5: Solve for x
    x = 18,744,089.65/4,811.37
  6. Step 6: Final answer
    x = 3,895.79

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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.