Home / 1,975.67-2,724.63-1,229.39

Finding the Fourth Proportional to 1,975.67, 2,724.63 and 1,229.39

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Solution

The fourth proportional to 1,975.67, 2,724.63 and 1,229.39 is: 1,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.67 : 2,724.63 = 1,229.39 : x
  2. Step 2: Convert to fraction form
    1,975.67/2,724.63 = 1,229.39/x
  3. Step 3: Cross multiply
    1,975.67x = 2,724.63 × 1,229.39
  4. Step 4: Simplify right side
    1,975.67x = 3,349,632.88
  5. Step 5: Solve for x
    x = 3,349,632.88/1,975.67
  6. Step 6: Final answer
    x = 1,695.44

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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.