Home / 8,390.25-12,586.59-2,546.87

Finding the Fourth Proportional to 8,390.25, 12,586.59 and 2,546.87

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Solution

The fourth proportional to 8,390.25, 12,586.59 and 2,546.87 is: 3,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.25 : 12,586.59 = 2,546.87 : x
  2. Step 2: Convert to fraction form
    8,390.25/12,586.59 = 2,546.87/x
  3. Step 3: Cross multiply
    8,390.25x = 12,586.59 × 2,546.87
  4. Step 4: Simplify right side
    8,390.25x = 32,056,345.54
  5. Step 5: Solve for x
    x = 32,056,345.54/8,390.25
  6. Step 6: Final answer
    x = 3,820.67

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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.