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Finding the Fourth Proportional to 7,289.71, 10,060.31 and 4,103.31

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Solution

The fourth proportional to 7,289.71, 10,060.31 and 4,103.31 is: 5,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.71 : 10,060.31 = 4,103.31 : x
  2. Step 2: Convert to fraction form
    7,289.71/10,060.31 = 4,103.31/x
  3. Step 3: Cross multiply
    7,289.71x = 10,060.31 × 4,103.31
  4. Step 4: Simplify right side
    7,289.71x = 41,280,550.11
  5. Step 5: Solve for x
    x = 41,280,550.11/7,289.71
  6. Step 6: Final answer
    x = 5,662.86

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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.