Home / 3,379.34-4,660.80-2,119.26

Finding the Fourth Proportional to 3,379.34, 4,660.80 and 2,119.26

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Solution

The fourth proportional to 3,379.34, 4,660.80 and 2,119.26 is: 2,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.34 : 4,660.80 = 2,119.26 : x
  2. Step 2: Convert to fraction form
    3,379.34/4,660.80 = 2,119.26/x
  3. Step 3: Cross multiply
    3,379.34x = 4,660.80 × 2,119.26
  4. Step 4: Simplify right side
    3,379.34x = 9,877,447.01
  5. Step 5: Solve for x
    x = 9,877,447.01/3,379.34
  6. Step 6: Final answer
    x = 2,922.89

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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.