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Finding the Fourth Proportional to 2,797.44, 3,860.41 and 1,538.48

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Solution

The fourth proportional to 2,797.44, 3,860.41 and 1,538.48 is: 2,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.44 : 3,860.41 = 1,538.48 : x
  2. Step 2: Convert to fraction form
    2,797.44/3,860.41 = 1,538.48/x
  3. Step 3: Cross multiply
    2,797.44x = 3,860.41 × 1,538.48
  4. Step 4: Simplify right side
    2,797.44x = 5,939,140.43
  5. Step 5: Solve for x
    x = 5,939,140.43/2,797.44
  6. Step 6: Final answer
    x = 2,123.07

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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.