Home / 1,738.41-2,396.90-1,207.74

Finding the Fourth Proportional to 1,738.41, 2,396.90 and 1,207.74

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Solution

The fourth proportional to 1,738.41, 2,396.90 and 1,207.74 is: 1,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.41 : 2,396.90 = 1,207.74 : x
  2. Step 2: Convert to fraction form
    1,738.41/2,396.90 = 1,207.74/x
  3. Step 3: Cross multiply
    1,738.41x = 2,396.90 × 1,207.74
  4. Step 4: Simplify right side
    1,738.41x = 2,894,825.97
  5. Step 5: Solve for x
    x = 2,894,825.97/1,738.41
  6. Step 6: Final answer
    x = 1,665.21

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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.