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Finding the Fourth Proportional to 6,518.92, 8,993.70 and 4,502.20

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Solution

The fourth proportional to 6,518.92, 8,993.70 and 4,502.20 is: 6,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.92 : 8,993.70 = 4,502.20 : x
  2. Step 2: Convert to fraction form
    6,518.92/8,993.70 = 4,502.20/x
  3. Step 3: Cross multiply
    6,518.92x = 8,993.70 × 4,502.20
  4. Step 4: Simplify right side
    6,518.92x = 40,491,436.14
  5. Step 5: Solve for x
    x = 40,491,436.14/6,518.92
  6. Step 6: Final answer
    x = 6,211.37

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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.