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Finding the Fourth Proportional to 1,293.23, 1,784.36 and 733.62

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Solution

The fourth proportional to 1,293.23, 1,784.36 and 733.62 is: 1,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.23 : 1,784.36 = 733.62 : x
  2. Step 2: Convert to fraction form
    1,293.23/1,784.36 = 733.62/x
  3. Step 3: Cross multiply
    1,293.23x = 1,784.36 × 733.62
  4. Step 4: Simplify right side
    1,293.23x = 1,309,050.71
  5. Step 5: Solve for x
    x = 1,309,050.71/1,293.23
  6. Step 6: Final answer
    x = 1,012.23

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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.