Home / 6,420.06-8,858.97-3,625.56

Finding the Fourth Proportional to 6,420.06, 8,858.97 and 3,625.56

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Solution

The fourth proportional to 6,420.06, 8,858.97 and 3,625.56 is: 5,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.06 : 8,858.97 = 3,625.56 : x
  2. Step 2: Convert to fraction form
    6,420.06/8,858.97 = 3,625.56/x
  3. Step 3: Cross multiply
    6,420.06x = 8,858.97 × 3,625.56
  4. Step 4: Simplify right side
    6,420.06x = 32,118,727.27
  5. Step 5: Solve for x
    x = 32,118,727.27/6,420.06
  6. Step 6: Final answer
    x = 5,002.87

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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.