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Finding the Fourth Proportional to 6,243, 8,615.38 and 3,448.60

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Solution

The fourth proportional to 6,243, 8,615.38 and 3,448.60 is: 4,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243 : 8,615.38 = 3,448.60 : x
  2. Step 2: Convert to fraction form
    6,243/8,615.38 = 3,448.60/x
  3. Step 3: Cross multiply
    6,243x = 8,615.38 × 3,448.60
  4. Step 4: Simplify right side
    6,243x = 29,710,999.47
  5. Step 5: Solve for x
    x = 29,710,999.47/6,243
  6. Step 6: Final answer
    x = 4,759.09

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Half scale
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1.5x scale

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.