Home / 1,738.21-2,602.07-1,120.69

Finding the Fourth Proportional to 1,738.21, 2,602.07 and 1,120.69

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Solution

The fourth proportional to 1,738.21, 2,602.07 and 1,120.69 is: 1,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.21 : 2,602.07 = 1,120.69 : x
  2. Step 2: Convert to fraction form
    1,738.21/2,602.07 = 1,120.69/x
  3. Step 3: Cross multiply
    1,738.21x = 2,602.07 × 1,120.69
  4. Step 4: Simplify right side
    1,738.21x = 2,916,107.35
  5. Step 5: Solve for x
    x = 2,916,107.35/1,738.21
  6. Step 6: Final answer
    x = 1,677.65

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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.