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Finding the Fourth Proportional to 1,972.39, 2,958.59 and 803.03

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Solution

The fourth proportional to 1,972.39, 2,958.59 and 803.03 is: 1,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.39 : 2,958.59 = 803.03 : x
  2. Step 2: Convert to fraction form
    1,972.39/2,958.59 = 803.03/x
  3. Step 3: Cross multiply
    1,972.39x = 2,958.59 × 803.03
  4. Step 4: Simplify right side
    1,972.39x = 2,375,832.51
  5. Step 5: Solve for x
    x = 2,375,832.51/1,972.39
  6. Step 6: Final answer
    x = 1,204.54

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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.