Home / 5,666.37-7,820.70-3,620.96

Finding the Fourth Proportional to 5,666.37, 7,820.70 and 3,620.96

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Solution

The fourth proportional to 5,666.37, 7,820.70 and 3,620.96 is: 4,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.37 : 7,820.70 = 3,620.96 : x
  2. Step 2: Convert to fraction form
    5,666.37/7,820.70 = 3,620.96/x
  3. Step 3: Cross multiply
    5,666.37x = 7,820.70 × 3,620.96
  4. Step 4: Simplify right side
    5,666.37x = 28,318,441.87
  5. Step 5: Solve for x
    x = 28,318,441.87/5,666.37
  6. Step 6: Final answer
    x = 4,997.63

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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.