Home / 2,162.76-2,984.62-1,231.26

Finding the Fourth Proportional to 2,162.76, 2,984.62 and 1,231.26

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Solution

The fourth proportional to 2,162.76, 2,984.62 and 1,231.26 is: 1,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.76 : 2,984.62 = 1,231.26 : x
  2. Step 2: Convert to fraction form
    2,162.76/2,984.62 = 1,231.26/x
  3. Step 3: Cross multiply
    2,162.76x = 2,984.62 × 1,231.26
  4. Step 4: Simplify right side
    2,162.76x = 3,674,843.22
  5. Step 5: Solve for x
    x = 3,674,843.22/2,162.76
  6. Step 6: Final answer
    x = 1,699.15

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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.