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Finding the Fourth Proportional to 1,972.56, 2,952.54 and 1,418.52

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Solution

The fourth proportional to 1,972.56, 2,952.54 and 1,418.52 is: 2,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.56 : 2,952.54 = 1,418.52 : x
  2. Step 2: Convert to fraction form
    1,972.56/2,952.54 = 1,418.52/x
  3. Step 3: Cross multiply
    1,972.56x = 2,952.54 × 1,418.52
  4. Step 4: Simplify right side
    1,972.56x = 4,188,237.04
  5. Step 5: Solve for x
    x = 4,188,237.04/1,972.56
  6. Step 6: Final answer
    x = 2,123.25

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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.