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Finding the Fourth Proportional to 1,177.34, 1,624.79 and 673.25

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Solution

The fourth proportional to 1,177.34, 1,624.79 and 673.25 is: 929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.34 : 1,624.79 = 673.25 : x
  2. Step 2: Convert to fraction form
    1,177.34/1,624.79 = 673.25/x
  3. Step 3: Cross multiply
    1,177.34x = 1,624.79 × 673.25
  4. Step 4: Simplify right side
    1,177.34x = 1,093,883.43
  5. Step 5: Solve for x
    x = 1,093,883.43/1,177.34
  6. Step 6: Final answer
    x = 929.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.