Home / 4,218.26-5,815.73-2,889.59

Finding the Fourth Proportional to 4,218.26, 5,815.73 and 2,889.59

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Solution

The fourth proportional to 4,218.26, 5,815.73 and 2,889.59 is: 3,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.26 : 5,815.73 = 2,889.59 : x
  2. Step 2: Convert to fraction form
    4,218.26/5,815.73 = 2,889.59/x
  3. Step 3: Cross multiply
    4,218.26x = 5,815.73 × 2,889.59
  4. Step 4: Simplify right side
    4,218.26x = 16,805,053.40
  5. Step 5: Solve for x
    x = 16,805,053.40/4,218.26
  6. Step 6: Final answer
    x = 3,983.89

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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.