Home / 6,418.32-9,628.74-2,720.49

Finding the Fourth Proportional to 6,418.32, 9,628.74 and 2,720.49

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Solution

The fourth proportional to 6,418.32, 9,628.74 and 2,720.49 is: 4,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.32 : 9,628.74 = 2,720.49 : x
  2. Step 2: Convert to fraction form
    6,418.32/9,628.74 = 2,720.49/x
  3. Step 3: Cross multiply
    6,418.32x = 9,628.74 × 2,720.49
  4. Step 4: Simplify right side
    6,418.32x = 26,194,890.88
  5. Step 5: Solve for x
    x = 26,194,890.88/6,418.32
  6. Step 6: Final answer
    x = 4,081.27

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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.