Home / 6,647.60-9,172.41-3,995.30

Finding the Fourth Proportional to 6,647.60, 9,172.41 and 3,995.30

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Solution

The fourth proportional to 6,647.60, 9,172.41 and 3,995.30 is: 5,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.60 : 9,172.41 = 3,995.30 : x
  2. Step 2: Convert to fraction form
    6,647.60/9,172.41 = 3,995.30/x
  3. Step 3: Cross multiply
    6,647.60x = 9,172.41 × 3,995.30
  4. Step 4: Simplify right side
    6,647.60x = 36,646,529.67
  5. Step 5: Solve for x
    x = 36,646,529.67/6,647.60
  6. Step 6: Final answer
    x = 5,512.75

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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.