Home / 6,389.10-8,816.26-3,556.02

Finding the Fourth Proportional to 6,389.10, 8,816.26 and 3,556.02

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Solution

The fourth proportional to 6,389.10, 8,816.26 and 3,556.02 is: 4,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.10 : 8,816.26 = 3,556.02 : x
  2. Step 2: Convert to fraction form
    6,389.10/8,816.26 = 3,556.02/x
  3. Step 3: Cross multiply
    6,389.10x = 8,816.26 × 3,556.02
  4. Step 4: Simplify right side
    6,389.10x = 31,350,796.89
  5. Step 5: Solve for x
    x = 31,350,796.89/6,389.10
  6. Step 6: Final answer
    x = 4,906.92

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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.