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Finding the Fourth Proportional to 853.77, 1,176.96 and 735.23

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Solution

The fourth proportional to 853.77, 1,176.96 and 735.23 is: 1,013.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    853.77 : 1,176.96 = 735.23 : x
  2. Step 2: Convert to fraction form
    853.77/1,176.96 = 735.23/x
  3. Step 3: Cross multiply
    853.77x = 1,176.96 × 735.23
  4. Step 4: Simplify right side
    853.77x = 865,329.18
  5. Step 5: Solve for x
    x = 865,329.18/853.77
  6. Step 6: Final answer
    x = 1,013.54

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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.