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Finding the Fourth Proportional to 6,873.03, 9,484.78 and 3,729.21

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Solution

The fourth proportional to 6,873.03, 9,484.78 and 3,729.21 is: 5,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,873.03 : 9,484.78 = 3,729.21 : x
  2. Step 2: Convert to fraction form
    6,873.03/9,484.78 = 3,729.21/x
  3. Step 3: Cross multiply
    6,873.03x = 9,484.78 × 3,729.21
  4. Step 4: Simplify right side
    6,873.03x = 35,370,736.42
  5. Step 5: Solve for x
    x = 35,370,736.42/6,873.03
  6. Step 6: Final answer
    x = 5,146.31

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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.