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Finding the Fourth Proportional to 6,506.90, 8,979.50 and 3,522.71

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Solution

The fourth proportional to 6,506.90, 8,979.50 and 3,522.71 is: 4,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506.90 : 8,979.50 = 3,522.71 : x
  2. Step 2: Convert to fraction form
    6,506.90/8,979.50 = 3,522.71/x
  3. Step 3: Cross multiply
    6,506.90x = 8,979.50 × 3,522.71
  4. Step 4: Simplify right side
    6,506.90x = 31,632,174.45
  5. Step 5: Solve for x
    x = 31,632,174.45/6,506.90
  6. Step 6: Final answer
    x = 4,861.33

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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.