Home / 2,858.14-3,938.97-2,357.74

Finding the Fourth Proportional to 2,858.14, 3,938.97 and 2,357.74

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Solution

The fourth proportional to 2,858.14, 3,938.97 and 2,357.74 is: 3,249.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.14 : 3,938.97 = 2,357.74 : x
  2. Step 2: Convert to fraction form
    2,858.14/3,938.97 = 2,357.74/x
  3. Step 3: Cross multiply
    2,858.14x = 3,938.97 × 2,357.74
  4. Step 4: Simplify right side
    2,858.14x = 9,287,067.13
  5. Step 5: Solve for x
    x = 9,287,067.13/2,858.14
  6. Step 6: Final answer
    x = 3,249.34

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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.