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Finding the Fourth Proportional to 1,300.90, 1,794.93 and 1,256.44

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Solution

The fourth proportional to 1,300.90, 1,794.93 and 1,256.44 is: 1,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300.90 : 1,794.93 = 1,256.44 : x
  2. Step 2: Convert to fraction form
    1,300.90/1,794.93 = 1,256.44/x
  3. Step 3: Cross multiply
    1,300.90x = 1,794.93 × 1,256.44
  4. Step 4: Simplify right side
    1,300.90x = 2,255,212.87
  5. Step 5: Solve for x
    x = 2,255,212.87/1,300.90
  6. Step 6: Final answer
    x = 1,733.59

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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.