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Finding the Fourth Proportional to 6,429.99, 9,640.30 and 4,344.83

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Solution

The fourth proportional to 6,429.99, 9,640.30 and 4,344.83 is: 6,514.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.99 : 9,640.30 = 4,344.83 : x
  2. Step 2: Convert to fraction form
    6,429.99/9,640.30 = 4,344.83/x
  3. Step 3: Cross multiply
    6,429.99x = 9,640.30 × 4,344.83
  4. Step 4: Simplify right side
    6,429.99x = 41,885,464.65
  5. Step 5: Solve for x
    x = 41,885,464.65/6,429.99
  6. Step 6: Final answer
    x = 6,514.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.