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Finding the Fourth Proportional to 1,293.48, 1,785.06 and 796.41

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Solution

The fourth proportional to 1,293.48, 1,785.06 and 796.41 is: 1,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.48 : 1,785.06 = 796.41 : x
  2. Step 2: Convert to fraction form
    1,293.48/1,785.06 = 796.41/x
  3. Step 3: Cross multiply
    1,293.48x = 1,785.06 × 796.41
  4. Step 4: Simplify right side
    1,293.48x = 1,421,639.63
  5. Step 5: Solve for x
    x = 1,421,639.63/1,293.48
  6. Step 6: Final answer
    x = 1,099.08

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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.