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Finding the Fourth Proportional to 7,829.81, 10,805.04 and 4,293.02

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Solution

The fourth proportional to 7,829.81, 10,805.04 and 4,293.02 is: 5,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.81 : 10,805.04 = 4,293.02 : x
  2. Step 2: Convert to fraction form
    7,829.81/10,805.04 = 4,293.02/x
  3. Step 3: Cross multiply
    7,829.81x = 10,805.04 × 4,293.02
  4. Step 4: Simplify right side
    7,829.81x = 46,386,198.80
  5. Step 5: Solve for x
    x = 46,386,198.80/7,829.81
  6. Step 6: Final answer
    x = 5,924.31

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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.