Home / 7,289.90-10,936.73-2,609.72

Finding the Fourth Proportional to 7,289.90, 10,936.73 and 2,609.72

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Solution

The fourth proportional to 7,289.90, 10,936.73 and 2,609.72 is: 3,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.90 : 10,936.73 = 2,609.72 : x
  2. Step 2: Convert to fraction form
    7,289.90/10,936.73 = 2,609.72/x
  3. Step 3: Cross multiply
    7,289.90x = 10,936.73 × 2,609.72
  4. Step 4: Simplify right side
    7,289.90x = 28,541,803.02
  5. Step 5: Solve for x
    x = 28,541,803.02/7,289.90
  6. Step 6: Final answer
    x = 3,915.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.