Home / 3,686.25-5,087.33-2,114.65

Finding the Fourth Proportional to 3,686.25, 5,087.33 and 2,114.65

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Solution

The fourth proportional to 3,686.25, 5,087.33 and 2,114.65 is: 2,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.25 : 5,087.33 = 2,114.65 : x
  2. Step 2: Convert to fraction form
    3,686.25/5,087.33 = 2,114.65/x
  3. Step 3: Cross multiply
    3,686.25x = 5,087.33 × 2,114.65
  4. Step 4: Simplify right side
    3,686.25x = 10,757,914.95
  5. Step 5: Solve for x
    x = 10,757,914.95/3,686.25
  6. Step 6: Final answer
    x = 2,918.39

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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.