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Finding the Fourth Proportional to 6,958.55, 10,438.98 and 3,448.72

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Solution

The fourth proportional to 6,958.55, 10,438.98 and 3,448.72 is: 5,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,958.55 : 10,438.98 = 3,448.72 : x
  2. Step 2: Convert to fraction form
    6,958.55/10,438.98 = 3,448.72/x
  3. Step 3: Cross multiply
    6,958.55x = 10,438.98 × 3,448.72
  4. Step 4: Simplify right side
    6,958.55x = 36,001,066.91
  5. Step 5: Solve for x
    x = 36,001,066.91/6,958.55
  6. Step 6: Final answer
    x = 5,173.64

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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.