Home / 2,445.69-3,375.09-1,438.11

Finding the Fourth Proportional to 2,445.69, 3,375.09 and 1,438.11

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Solution

The fourth proportional to 2,445.69, 3,375.09 and 1,438.11 is: 1,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.69 : 3,375.09 = 1,438.11 : x
  2. Step 2: Convert to fraction form
    2,445.69/3,375.09 = 1,438.11/x
  3. Step 3: Cross multiply
    2,445.69x = 3,375.09 × 1,438.11
  4. Step 4: Simplify right side
    2,445.69x = 4,853,750.68
  5. Step 5: Solve for x
    x = 4,853,750.68/2,445.69
  6. Step 6: Final answer
    x = 1,984.61

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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.