Home / 2,765.22-3,814.55-1,645.36

Finding the Fourth Proportional to 2,765.22, 3,814.55 and 1,645.36

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Solution

The fourth proportional to 2,765.22, 3,814.55 and 1,645.36 is: 2,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.22 : 3,814.55 = 1,645.36 : x
  2. Step 2: Convert to fraction form
    2,765.22/3,814.55 = 1,645.36/x
  3. Step 3: Cross multiply
    2,765.22x = 3,814.55 × 1,645.36
  4. Step 4: Simplify right side
    2,765.22x = 6,276,299.76
  5. Step 5: Solve for x
    x = 6,276,299.76/2,765.22
  6. Step 6: Final answer
    x = 2,269.73

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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.