Home / 5,534.21-7,638.82-3,620.31

Finding the Fourth Proportional to 5,534.21, 7,638.82 and 3,620.31

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Solution

The fourth proportional to 5,534.21, 7,638.82 and 3,620.31 is: 4,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,534.21 : 7,638.82 = 3,620.31 : x
  2. Step 2: Convert to fraction form
    5,534.21/7,638.82 = 3,620.31/x
  3. Step 3: Cross multiply
    5,534.21x = 7,638.82 × 3,620.31
  4. Step 4: Simplify right side
    5,534.21x = 27,654,887.38
  5. Step 5: Solve for x
    x = 27,654,887.38/5,534.21
  6. Step 6: Final answer
    x = 4,997.08

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1.5x scale

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.