Home / 6,390.20-9,577.64-3,758.96

Finding the Fourth Proportional to 6,390.20, 9,577.64 and 3,758.96

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Solution

The fourth proportional to 6,390.20, 9,577.64 and 3,758.96 is: 5,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.20 : 9,577.64 = 3,758.96 : x
  2. Step 2: Convert to fraction form
    6,390.20/9,577.64 = 3,758.96/x
  3. Step 3: Cross multiply
    6,390.20x = 9,577.64 × 3,758.96
  4. Step 4: Simplify right side
    6,390.20x = 36,001,965.65
  5. Step 5: Solve for x
    x = 36,001,965.65/6,390.20
  6. Step 6: Final answer
    x = 5,633.93

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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.