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Finding the Fourth Proportional to 6,272.64, 8,655.93 and 3,619.89

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Solution

The fourth proportional to 6,272.64, 8,655.93 and 3,619.89 is: 4,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,272.64 : 8,655.93 = 3,619.89 : x
  2. Step 2: Convert to fraction form
    6,272.64/8,655.93 = 3,619.89/x
  3. Step 3: Cross multiply
    6,272.64x = 8,655.93 × 3,619.89
  4. Step 4: Simplify right side
    6,272.64x = 31,333,514.45
  5. Step 5: Solve for x
    x = 31,333,514.45/6,272.64
  6. Step 6: Final answer
    x = 4,995.27

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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.