Home / 6,480.21-9,718.86-3,148.38

Finding the Fourth Proportional to 6,480.21, 9,718.86 and 3,148.38

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Solution

The fourth proportional to 6,480.21, 9,718.86 and 3,148.38 is: 4,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.21 : 9,718.86 = 3,148.38 : x
  2. Step 2: Convert to fraction form
    6,480.21/9,718.86 = 3,148.38/x
  3. Step 3: Cross multiply
    6,480.21x = 9,718.86 × 3,148.38
  4. Step 4: Simplify right side
    6,480.21x = 30,598,664.45
  5. Step 5: Solve for x
    x = 30,598,664.45/6,480.21
  6. Step 6: Final answer
    x = 4,721.86

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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.