Home / 2,151.66-3,218.56-2,020.44

Finding the Fourth Proportional to 2,151.66, 3,218.56 and 2,020.44

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Solution

The fourth proportional to 2,151.66, 3,218.56 and 2,020.44 is: 3,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.66 : 3,218.56 = 2,020.44 : x
  2. Step 2: Convert to fraction form
    2,151.66/3,218.56 = 2,020.44/x
  3. Step 3: Cross multiply
    2,151.66x = 3,218.56 × 2,020.44
  4. Step 4: Simplify right side
    2,151.66x = 6,502,907.37
  5. Step 5: Solve for x
    x = 6,502,907.37/2,151.66
  6. Step 6: Final answer
    x = 3,022.27

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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.