Home / 2,448.48-3,379.65-2,120.43

Finding the Fourth Proportional to 2,448.48, 3,379.65 and 2,120.43

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Solution

The fourth proportional to 2,448.48, 3,379.65 and 2,120.43 is: 2,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.48 : 3,379.65 = 2,120.43 : x
  2. Step 2: Convert to fraction form
    2,448.48/3,379.65 = 2,120.43/x
  3. Step 3: Cross multiply
    2,448.48x = 3,379.65 × 2,120.43
  4. Step 4: Simplify right side
    2,448.48x = 7,166,311.25
  5. Step 5: Solve for x
    x = 7,166,311.25/2,448.48
  6. Step 6: Final answer
    x = 2,926.84

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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.