Home / 8,390.44-12,586.92-2,546.40

Finding the Fourth Proportional to 8,390.44, 12,586.92 and 2,546.40

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Solution

The fourth proportional to 8,390.44, 12,586.92 and 2,546.40 is: 3,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.44 : 12,586.92 = 2,546.40 : x
  2. Step 2: Convert to fraction form
    8,390.44/12,586.92 = 2,546.40/x
  3. Step 3: Cross multiply
    8,390.44x = 12,586.92 × 2,546.40
  4. Step 4: Simplify right side
    8,390.44x = 32,051,333.09
  5. Step 5: Solve for x
    x = 32,051,333.09/8,390.44
  6. Step 6: Final answer
    x = 3,819.98

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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.