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Finding the Fourth Proportional to 1,491.73, 2,237.52 and 396.07

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Solution

The fourth proportional to 1,491.73, 2,237.52 and 396.07 is: 594.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.73 : 2,237.52 = 396.07 : x
  2. Step 2: Convert to fraction form
    1,491.73/2,237.52 = 396.07/x
  3. Step 3: Cross multiply
    1,491.73x = 2,237.52 × 396.07
  4. Step 4: Simplify right side
    1,491.73x = 886,214.55
  5. Step 5: Solve for x
    x = 886,214.55/1,491.73
  6. Step 6: Final answer
    x = 594.09

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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.