Home / 4,939.64-7,412.37-1,821.84

Finding the Fourth Proportional to 4,939.64, 7,412.37 and 1,821.84

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Solution

The fourth proportional to 4,939.64, 7,412.37 and 1,821.84 is: 2,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.64 : 7,412.37 = 1,821.84 : x
  2. Step 2: Convert to fraction form
    4,939.64/7,412.37 = 1,821.84/x
  3. Step 3: Cross multiply
    4,939.64x = 7,412.37 × 1,821.84
  4. Step 4: Simplify right side
    4,939.64x = 13,504,152.16
  5. Step 5: Solve for x
    x = 13,504,152.16/4,939.64
  6. Step 6: Final answer
    x = 2,733.83

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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.