Home / 6,424-8,865.39-3,629.50

Finding the Fourth Proportional to 6,424, 8,865.39 and 3,629.50

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Solution

The fourth proportional to 6,424, 8,865.39 and 3,629.50 is: 5,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424 : 8,865.39 = 3,629.50 : x
  2. Step 2: Convert to fraction form
    6,424/8,865.39 = 3,629.50/x
  3. Step 3: Cross multiply
    6,424x = 8,865.39 × 3,629.50
  4. Step 4: Simplify right side
    6,424x = 32,176,933.01
  5. Step 5: Solve for x
    x = 32,176,933.01/6,424
  6. Step 6: Final answer
    x = 5,008.86

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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.