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Finding the Fourth Proportional to 6,430.92, 8,874.72 and 3,636.24

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Solution

The fourth proportional to 6,430.92, 8,874.72 and 3,636.24 is: 5,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.92 : 8,874.72 = 3,636.24 : x
  2. Step 2: Convert to fraction form
    6,430.92/8,874.72 = 3,636.24/x
  3. Step 3: Cross multiply
    6,430.92x = 8,874.72 × 3,636.24
  4. Step 4: Simplify right side
    6,430.92x = 32,270,611.85
  5. Step 5: Solve for x
    x = 32,270,611.85/6,430.92
  6. Step 6: Final answer
    x = 5,018.04

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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.