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Finding the Fourth Proportional to 8,270.66, 12,405.91 and 2,030.87

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Solution

The fourth proportional to 8,270.66, 12,405.91 and 2,030.87 is: 3,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.66 : 12,405.91 = 2,030.87 : x
  2. Step 2: Convert to fraction form
    8,270.66/12,405.91 = 2,030.87/x
  3. Step 3: Cross multiply
    8,270.66x = 12,405.91 × 2,030.87
  4. Step 4: Simplify right side
    8,270.66x = 25,194,820.19
  5. Step 5: Solve for x
    x = 25,194,820.19/8,270.66
  6. Step 6: Final answer
    x = 3,046.29

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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.