Home / 6,389.21-8,817.44-3,556.59

Finding the Fourth Proportional to 6,389.21, 8,817.44 and 3,556.59

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Solution

The fourth proportional to 6,389.21, 8,817.44 and 3,556.59 is: 4,908.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.21 : 8,817.44 = 3,556.59 : x
  2. Step 2: Convert to fraction form
    6,389.21/8,817.44 = 3,556.59/x
  3. Step 3: Cross multiply
    6,389.21x = 8,817.44 × 3,556.59
  4. Step 4: Simplify right side
    6,389.21x = 31,360,018.93
  5. Step 5: Solve for x
    x = 31,360,018.93/6,389.21
  6. Step 6: Final answer
    x = 4,908.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.