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Finding the Fourth Proportional to 7,321.34, 10,982.01 and 1,774.68

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Solution

The fourth proportional to 7,321.34, 10,982.01 and 1,774.68 is: 2,662.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.34 : 10,982.01 = 1,774.68 : x
  2. Step 2: Convert to fraction form
    7,321.34/10,982.01 = 1,774.68/x
  3. Step 3: Cross multiply
    7,321.34x = 10,982.01 × 1,774.68
  4. Step 4: Simplify right side
    7,321.34x = 19,489,553.51
  5. Step 5: Solve for x
    x = 19,489,553.51/7,321.34
  6. Step 6: Final answer
    x = 2,662.02

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1.5x scale

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.