Home / 1,975.17-2,723.94-1,228.89

Finding the Fourth Proportional to 1,975.17, 2,723.94 and 1,228.89

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Solution

The fourth proportional to 1,975.17, 2,723.94 and 1,228.89 is: 1,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.17 : 2,723.94 = 1,228.89 : x
  2. Step 2: Convert to fraction form
    1,975.17/2,723.94 = 1,228.89/x
  3. Step 3: Cross multiply
    1,975.17x = 2,723.94 × 1,228.89
  4. Step 4: Simplify right side
    1,975.17x = 3,347,422.63
  5. Step 5: Solve for x
    x = 3,347,422.63/1,975.17
  6. Step 6: Final answer
    x = 1,694.75

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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.