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Finding the Fourth Proportional to 1,341.44, 1,851.21 and 751.94

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Solution

The fourth proportional to 1,341.44, 1,851.21 and 751.94 is: 1,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.44 : 1,851.21 = 751.94 : x
  2. Step 2: Convert to fraction form
    1,341.44/1,851.21 = 751.94/x
  3. Step 3: Cross multiply
    1,341.44x = 1,851.21 × 751.94
  4. Step 4: Simplify right side
    1,341.44x = 1,391,998.85
  5. Step 5: Solve for x
    x = 1,391,998.85/1,341.44
  6. Step 6: Final answer
    x = 1,037.69

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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.