Home / 1,759.22-2,643.75-1,214.90

Finding the Fourth Proportional to 1,759.22, 2,643.75 and 1,214.90

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Solution

The fourth proportional to 1,759.22, 2,643.75 and 1,214.90 is: 1,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.22 : 2,643.75 = 1,214.90 : x
  2. Step 2: Convert to fraction form
    1,759.22/2,643.75 = 1,214.90/x
  3. Step 3: Cross multiply
    1,759.22x = 2,643.75 × 1,214.90
  4. Step 4: Simplify right side
    1,759.22x = 3,211,878.66
  5. Step 5: Solve for x
    x = 3,211,878.66/1,759.22
  6. Step 6: Final answer
    x = 1,825.75

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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.