Home / 2,770.63-3,821.50-1,650.70

Finding the Fourth Proportional to 2,770.63, 3,821.50 and 1,650.70

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Solution

The fourth proportional to 2,770.63, 3,821.50 and 1,650.70 is: 2,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.63 : 3,821.50 = 1,650.70 : x
  2. Step 2: Convert to fraction form
    2,770.63/3,821.50 = 1,650.70/x
  3. Step 3: Cross multiply
    2,770.63x = 3,821.50 × 1,650.70
  4. Step 4: Simplify right side
    2,770.63x = 6,308,150.05
  5. Step 5: Solve for x
    x = 6,308,150.05/2,770.63
  6. Step 6: Final answer
    x = 2,276.79

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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.