Home / 5,577.40-8,375.70-3,945.40

Finding the Fourth Proportional to 5,577.40, 8,375.70 and 3,945.40

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Solution

The fourth proportional to 5,577.40, 8,375.70 and 3,945.40 is: 5,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.40 : 8,375.70 = 3,945.40 : x
  2. Step 2: Convert to fraction form
    5,577.40/8,375.70 = 3,945.40/x
  3. Step 3: Cross multiply
    5,577.40x = 8,375.70 × 3,945.40
  4. Step 4: Simplify right side
    5,577.40x = 33,045,486.78
  5. Step 5: Solve for x
    x = 33,045,486.78/5,577.40
  6. Step 6: Final answer
    x = 5,924.89

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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.