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Finding the Fourth Proportional to 6,455.99, 8,908.90 and 3,623.10

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Solution

The fourth proportional to 6,455.99, 8,908.90 and 3,623.10 is: 4,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.99 : 8,908.90 = 3,623.10 : x
  2. Step 2: Convert to fraction form
    6,455.99/8,908.90 = 3,623.10/x
  3. Step 3: Cross multiply
    6,455.99x = 8,908.90 × 3,623.10
  4. Step 4: Simplify right side
    6,455.99x = 32,277,835.59
  5. Step 5: Solve for x
    x = 32,277,835.59/6,455.99
  6. Step 6: Final answer
    x = 4,999.67

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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.