Home / 6,399-8,824.55-4,162.59

Finding the Fourth Proportional to 6,399, 8,824.55 and 4,162.59

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Solution

The fourth proportional to 6,399, 8,824.55 and 4,162.59 is: 5,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399 : 8,824.55 = 4,162.59 : x
  2. Step 2: Convert to fraction form
    6,399/8,824.55 = 4,162.59/x
  3. Step 3: Cross multiply
    6,399x = 8,824.55 × 4,162.59
  4. Step 4: Simplify right side
    6,399x = 36,732,962.77
  5. Step 5: Solve for x
    x = 36,732,962.77/6,399
  6. Step 6: Final answer
    x = 5,740.42

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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.