Home / 4,440.32-6,645.72-2,978.96

Finding the Fourth Proportional to 4,440.32, 6,645.72 and 2,978.96

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Solution

The fourth proportional to 4,440.32, 6,645.72 and 2,978.96 is: 4,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.32 : 6,645.72 = 2,978.96 : x
  2. Step 2: Convert to fraction form
    4,440.32/6,645.72 = 2,978.96/x
  3. Step 3: Cross multiply
    4,440.32x = 6,645.72 × 2,978.96
  4. Step 4: Simplify right side
    4,440.32x = 19,797,334.05
  5. Step 5: Solve for x
    x = 19,797,334.05/4,440.32
  6. Step 6: Final answer
    x = 4,458.54

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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.