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Finding the Fourth Proportional to 1,302.89, 1,954.23 and 481.01

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Solution

The fourth proportional to 1,302.89, 1,954.23 and 481.01 is: 721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.89 : 1,954.23 = 481.01 : x
  2. Step 2: Convert to fraction form
    1,302.89/1,954.23 = 481.01/x
  3. Step 3: Cross multiply
    1,302.89x = 1,954.23 × 481.01
  4. Step 4: Simplify right side
    1,302.89x = 939,994.40
  5. Step 5: Solve for x
    x = 939,994.40/1,302.89
  6. Step 6: Final answer
    x = 721.47

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Double scale
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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.