Home / 4,299.80-6,440.45-2,905.47

Finding the Fourth Proportional to 4,299.80, 6,440.45 and 2,905.47

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Solution

The fourth proportional to 4,299.80, 6,440.45 and 2,905.47 is: 4,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.80 : 6,440.45 = 2,905.47 : x
  2. Step 2: Convert to fraction form
    4,299.80/6,440.45 = 2,905.47/x
  3. Step 3: Cross multiply
    4,299.80x = 6,440.45 × 2,905.47
  4. Step 4: Simplify right side
    4,299.80x = 18,712,519.73
  5. Step 5: Solve for x
    x = 18,712,519.73/4,299.80
  6. Step 6: Final answer
    x = 4,351.96

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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.