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Finding the Fourth Proportional to 894.84, 1,335.70 and 791.16

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Solution

The fourth proportional to 894.84, 1,335.70 and 791.16 is: 1,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.84 : 1,335.70 = 791.16 : x
  2. Step 2: Convert to fraction form
    894.84/1,335.70 = 791.16/x
  3. Step 3: Cross multiply
    894.84x = 1,335.70 × 791.16
  4. Step 4: Simplify right side
    894.84x = 1,056,752.41
  5. Step 5: Solve for x
    x = 1,056,752.41/894.84
  6. Step 6: Final answer
    x = 1,180.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.