Home / 6,441.78-8,889.66-3,609.18

Finding the Fourth Proportional to 6,441.78, 8,889.66 and 3,609.18

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Solution

The fourth proportional to 6,441.78, 8,889.66 and 3,609.18 is: 4,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.78 : 8,889.66 = 3,609.18 : x
  2. Step 2: Convert to fraction form
    6,441.78/8,889.66 = 3,609.18/x
  3. Step 3: Cross multiply
    6,441.78x = 8,889.66 × 3,609.18
  4. Step 4: Simplify right side
    6,441.78x = 32,084,383.08
  5. Step 5: Solve for x
    x = 32,084,383.08/6,441.78
  6. Step 6: Final answer
    x = 4,980.67

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Half scale
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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.