Home / 3,186-4,770.84-2,890.08

Finding the Fourth Proportional to 3,186, 4,770.84 and 2,890.08

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Solution

The fourth proportional to 3,186, 4,770.84 and 2,890.08 is: 4,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186 : 4,770.84 = 2,890.08 : x
  2. Step 2: Convert to fraction form
    3,186/4,770.84 = 2,890.08/x
  3. Step 3: Cross multiply
    3,186x = 4,770.84 × 2,890.08
  4. Step 4: Simplify right side
    3,186x = 13,788,109.27
  5. Step 5: Solve for x
    x = 13,788,109.27/3,186
  6. Step 6: Final answer
    x = 4,327.72

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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.