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Finding the Fourth Proportional to 735.51, 1,103.67 and 443.10

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Solution

The fourth proportional to 735.51, 1,103.67 and 443.10 is: 664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.51 : 1,103.67 = 443.10 : x
  2. Step 2: Convert to fraction form
    735.51/1,103.67 = 443.10/x
  3. Step 3: Cross multiply
    735.51x = 1,103.67 × 443.10
  4. Step 4: Simplify right side
    735.51x = 489,036.18
  5. Step 5: Solve for x
    x = 489,036.18/735.51
  6. Step 6: Final answer
    x = 664.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.