Home / 2,186.80-3,021.62-1,748.32

Finding the Fourth Proportional to 2,186.80, 3,021.62 and 1,748.32

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Solution

The fourth proportional to 2,186.80, 3,021.62 and 1,748.32 is: 2,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.80 : 3,021.62 = 1,748.32 : x
  2. Step 2: Convert to fraction form
    2,186.80/3,021.62 = 1,748.32/x
  3. Step 3: Cross multiply
    2,186.80x = 3,021.62 × 1,748.32
  4. Step 4: Simplify right side
    2,186.80x = 5,282,758.68
  5. Step 5: Solve for x
    x = 5,282,758.68/2,186.80
  6. Step 6: Final answer
    x = 2,415.75

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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.