Home / 7,962.28-11,948.22-2,771.80

Finding the Fourth Proportional to 7,962.28, 11,948.22 and 2,771.80

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Solution

The fourth proportional to 7,962.28, 11,948.22 and 2,771.80 is: 4,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.28 : 11,948.22 = 2,771.80 : x
  2. Step 2: Convert to fraction form
    7,962.28/11,948.22 = 2,771.80/x
  3. Step 3: Cross multiply
    7,962.28x = 11,948.22 × 2,771.80
  4. Step 4: Simplify right side
    7,962.28x = 33,118,076.20
  5. Step 5: Solve for x
    x = 33,118,076.20/7,962.28
  6. Step 6: Final answer
    x = 4,159.37

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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.