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Finding the Fourth Proportional to 2,971, 4,453.02 and 1,021.48

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Solution

The fourth proportional to 2,971, 4,453.02 and 1,021.48 is: 1,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971 : 4,453.02 = 1,021.48 : x
  2. Step 2: Convert to fraction form
    2,971/4,453.02 = 1,021.48/x
  3. Step 3: Cross multiply
    2,971x = 4,453.02 × 1,021.48
  4. Step 4: Simplify right side
    2,971x = 4,548,670.87
  5. Step 5: Solve for x
    x = 4,548,670.87/2,971
  6. Step 6: Final answer
    x = 1,531.02

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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.