Home / 5,429.24-8,141.70-2,655.80

Finding the Fourth Proportional to 5,429.24, 8,141.70 and 2,655.80

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Solution

The fourth proportional to 5,429.24, 8,141.70 and 2,655.80 is: 3,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.24 : 8,141.70 = 2,655.80 : x
  2. Step 2: Convert to fraction form
    5,429.24/8,141.70 = 2,655.80/x
  3. Step 3: Cross multiply
    5,429.24x = 8,141.70 × 2,655.80
  4. Step 4: Simplify right side
    5,429.24x = 21,622,726.86
  5. Step 5: Solve for x
    x = 21,622,726.86/5,429.24
  6. Step 6: Final answer
    x = 3,982.64

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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.