Home / 2,186.25-3,015.03-1,628.13

Finding the Fourth Proportional to 2,186.25, 3,015.03 and 1,628.13

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Solution

The fourth proportional to 2,186.25, 3,015.03 and 1,628.13 is: 2,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.25 : 3,015.03 = 1,628.13 : x
  2. Step 2: Convert to fraction form
    2,186.25/3,015.03 = 1,628.13/x
  3. Step 3: Cross multiply
    2,186.25x = 3,015.03 × 1,628.13
  4. Step 4: Simplify right side
    2,186.25x = 4,908,860.79
  5. Step 5: Solve for x
    x = 4,908,860.79/2,186.25
  6. Step 6: Final answer
    x = 2,245.33

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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.