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Finding the Fourth Proportional to 7,289.25, 10,059.17 and 3,977.25

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Solution

The fourth proportional to 7,289.25, 10,059.17 and 3,977.25 is: 5,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.25 : 10,059.17 = 3,977.25 : x
  2. Step 2: Convert to fraction form
    7,289.25/10,059.17 = 3,977.25/x
  3. Step 3: Cross multiply
    7,289.25x = 10,059.17 × 3,977.25
  4. Step 4: Simplify right side
    7,289.25x = 40,007,833.88
  5. Step 5: Solve for x
    x = 40,007,833.88/7,289.25
  6. Step 6: Final answer
    x = 5,488.61

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1.5x scale

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.