Home / 2,018.26-2,782.62-1,308.88

Finding the Fourth Proportional to 2,018.26, 2,782.62 and 1,308.88

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Solution

The fourth proportional to 2,018.26, 2,782.62 and 1,308.88 is: 1,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.26 : 2,782.62 = 1,308.88 : x
  2. Step 2: Convert to fraction form
    2,018.26/2,782.62 = 1,308.88/x
  3. Step 3: Cross multiply
    2,018.26x = 2,782.62 × 1,308.88
  4. Step 4: Simplify right side
    2,018.26x = 3,642,115.67
  5. Step 5: Solve for x
    x = 3,642,115.67/2,018.26
  6. Step 6: Final answer
    x = 1,804.58

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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.