Home / 6,651.20-9,985.31-4,196.30

Finding the Fourth Proportional to 6,651.20, 9,985.31 and 4,196.30

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Solution

The fourth proportional to 6,651.20, 9,985.31 and 4,196.30 is: 6,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.20 : 9,985.31 = 4,196.30 : x
  2. Step 2: Convert to fraction form
    6,651.20/9,985.31 = 4,196.30/x
  3. Step 3: Cross multiply
    6,651.20x = 9,985.31 × 4,196.30
  4. Step 4: Simplify right side
    6,651.20x = 41,901,285.44
  5. Step 5: Solve for x
    x = 41,901,285.44/6,651.20
  6. Step 6: Final answer
    x = 6,299.81

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1.5x scale

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.