Home / 6,441.66-8,889.75-3,609.09

Finding the Fourth Proportional to 6,441.66, 8,889.75 and 3,609.09

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Solution

The fourth proportional to 6,441.66, 8,889.75 and 3,609.09 is: 4,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.66 : 8,889.75 = 3,609.09 : x
  2. Step 2: Convert to fraction form
    6,441.66/8,889.75 = 3,609.09/x
  3. Step 3: Cross multiply
    6,441.66x = 8,889.75 × 3,609.09
  4. Step 4: Simplify right side
    6,441.66x = 32,083,907.83
  5. Step 5: Solve for x
    x = 32,083,907.83/6,441.66
  6. Step 6: Final answer
    x = 4,980.69

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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.