Home / 2,764.60-3,814.84-1,645.38

Finding the Fourth Proportional to 2,764.60, 3,814.84 and 1,645.38

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Solution

The fourth proportional to 2,764.60, 3,814.84 and 1,645.38 is: 2,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.60 : 3,814.84 = 1,645.38 : x
  2. Step 2: Convert to fraction form
    2,764.60/3,814.84 = 1,645.38/x
  3. Step 3: Cross multiply
    2,764.60x = 3,814.84 × 1,645.38
  4. Step 4: Simplify right side
    2,764.60x = 6,276,853.21
  5. Step 5: Solve for x
    x = 6,276,853.21/2,764.60
  6. Step 6: Final answer
    x = 2,270.44

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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.