Home / 2,151.12-2,968.44-1,219.44

Finding the Fourth Proportional to 2,151.12, 2,968.44 and 1,219.44

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Solution

The fourth proportional to 2,151.12, 2,968.44 and 1,219.44 is: 1,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.12 : 2,968.44 = 1,219.44 : x
  2. Step 2: Convert to fraction form
    2,151.12/2,968.44 = 1,219.44/x
  3. Step 3: Cross multiply
    2,151.12x = 2,968.44 × 1,219.44
  4. Step 4: Simplify right side
    2,151.12x = 3,619,834.47
  5. Step 5: Solve for x
    x = 3,619,834.47/2,151.12
  6. Step 6: Final answer
    x = 1,682.77

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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.