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Finding the Fourth Proportional to 6,441.93, 8,890.34 and 3,609.16

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Solution

The fourth proportional to 6,441.93, 8,890.34 and 3,609.16 is: 4,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.93 : 8,890.34 = 3,609.16 : x
  2. Step 2: Convert to fraction form
    6,441.93/8,890.34 = 3,609.16/x
  3. Step 3: Cross multiply
    6,441.93x = 8,890.34 × 3,609.16
  4. Step 4: Simplify right side
    6,441.93x = 32,086,619.24
  5. Step 5: Solve for x
    x = 32,086,619.24/6,441.93
  6. Step 6: Final answer
    x = 4,980.90

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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.