Home / 3,207-4,421.66-2,676.65

Finding the Fourth Proportional to 3,207, 4,421.66 and 2,676.65

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Solution

The fourth proportional to 3,207, 4,421.66 and 2,676.65 is: 3,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207 : 4,421.66 = 2,676.65 : x
  2. Step 2: Convert to fraction form
    3,207/4,421.66 = 2,676.65/x
  3. Step 3: Cross multiply
    3,207x = 4,421.66 × 2,676.65
  4. Step 4: Simplify right side
    3,207x = 11,835,200.75
  5. Step 5: Solve for x
    x = 11,835,200.75/3,207
  6. Step 6: Final answer
    x = 3,690.43

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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.