Home / 2,857.26-4,286.39-1,009.45

Finding the Fourth Proportional to 2,857.26, 4,286.39 and 1,009.45

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Solution

The fourth proportional to 2,857.26, 4,286.39 and 1,009.45 is: 1,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.26 : 4,286.39 = 1,009.45 : x
  2. Step 2: Convert to fraction form
    2,857.26/4,286.39 = 1,009.45/x
  3. Step 3: Cross multiply
    2,857.26x = 4,286.39 × 1,009.45
  4. Step 4: Simplify right side
    2,857.26x = 4,326,896.39
  5. Step 5: Solve for x
    x = 4,326,896.39/2,857.26
  6. Step 6: Final answer
    x = 1,514.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.