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Finding the Fourth Proportional to 1,334.73, 1,842.02 and 885.81

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Solution

The fourth proportional to 1,334.73, 1,842.02 and 885.81 is: 1,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.73 : 1,842.02 = 885.81 : x
  2. Step 2: Convert to fraction form
    1,334.73/1,842.02 = 885.81/x
  3. Step 3: Cross multiply
    1,334.73x = 1,842.02 × 885.81
  4. Step 4: Simplify right side
    1,334.73x = 1,631,679.74
  5. Step 5: Solve for x
    x = 1,631,679.74/1,334.73
  6. Step 6: Final answer
    x = 1,222.48

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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.