Home / 6,423.72-8,861.70-4,651.44

Finding the Fourth Proportional to 6,423.72, 8,861.70 and 4,651.44

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Solution

The fourth proportional to 6,423.72, 8,861.70 and 4,651.44 is: 6,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.72 : 8,861.70 = 4,651.44 : x
  2. Step 2: Convert to fraction form
    6,423.72/8,861.70 = 4,651.44/x
  3. Step 3: Cross multiply
    6,423.72x = 8,861.70 × 4,651.44
  4. Step 4: Simplify right side
    6,423.72x = 41,219,665.85
  5. Step 5: Solve for x
    x = 41,219,665.85/6,423.72
  6. Step 6: Final answer
    x = 6,416.79

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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.