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Finding the Fourth Proportional to 6,239.34, 9,357.84 and 2,079.42

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Solution

The fourth proportional to 6,239.34, 9,357.84 and 2,079.42 is: 3,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.34 : 9,357.84 = 2,079.42 : x
  2. Step 2: Convert to fraction form
    6,239.34/9,357.84 = 2,079.42/x
  3. Step 3: Cross multiply
    6,239.34x = 9,357.84 × 2,079.42
  4. Step 4: Simplify right side
    6,239.34x = 19,458,879.65
  5. Step 5: Solve for x
    x = 19,458,879.65/6,239.34
  6. Step 6: Final answer
    x = 3,118.74

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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.