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Finding the Fourth Proportional to 6,458.69, 8,912.67 and 3,625.71

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Solution

The fourth proportional to 6,458.69, 8,912.67 and 3,625.71 is: 5,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.69 : 8,912.67 = 3,625.71 : x
  2. Step 2: Convert to fraction form
    6,458.69/8,912.67 = 3,625.71/x
  3. Step 3: Cross multiply
    6,458.69x = 8,912.67 × 3,625.71
  4. Step 4: Simplify right side
    6,458.69x = 32,314,756.75
  5. Step 5: Solve for x
    x = 32,314,756.75/6,458.69
  6. Step 6: Final answer
    x = 5,003.30

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1.5x scale

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.