Home / 4,215.33-6,319.88-2,021.97

Finding the Fourth Proportional to 4,215.33, 6,319.88 and 2,021.97

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Solution

The fourth proportional to 4,215.33, 6,319.88 and 2,021.97 is: 3,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.33 : 6,319.88 = 2,021.97 : x
  2. Step 2: Convert to fraction form
    4,215.33/6,319.88 = 2,021.97/x
  3. Step 3: Cross multiply
    4,215.33x = 6,319.88 × 2,021.97
  4. Step 4: Simplify right side
    4,215.33x = 12,778,597.65
  5. Step 5: Solve for x
    x = 12,778,597.65/4,215.33
  6. Step 6: Final answer
    x = 3,031.46

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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.