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Finding the Fourth Proportional to 6,679.53, 9,211.91 and 4,319.37

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Solution

The fourth proportional to 6,679.53, 9,211.91 and 4,319.37 is: 5,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.53 : 9,211.91 = 4,319.37 : x
  2. Step 2: Convert to fraction form
    6,679.53/9,211.91 = 4,319.37/x
  3. Step 3: Cross multiply
    6,679.53x = 9,211.91 × 4,319.37
  4. Step 4: Simplify right side
    6,679.53x = 39,789,626.10
  5. Step 5: Solve for x
    x = 39,789,626.10/6,679.53
  6. Step 6: Final answer
    x = 5,956.95

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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.