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Finding the Fourth Proportional to 3,239.94, 4,479.07 and 3,210.33

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Solution

The fourth proportional to 3,239.94, 4,479.07 and 3,210.33 is: 4,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.94 : 4,479.07 = 3,210.33 : x
  2. Step 2: Convert to fraction form
    3,239.94/4,479.07 = 3,210.33/x
  3. Step 3: Cross multiply
    3,239.94x = 4,479.07 × 3,210.33
  4. Step 4: Simplify right side
    3,239.94x = 14,379,278.82
  5. Step 5: Solve for x
    x = 14,379,278.82/3,239.94
  6. Step 6: Final answer
    x = 4,438.13

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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.