Home / 3,279.34-4,915.56-2,387.68

Finding the Fourth Proportional to 3,279.34, 4,915.56 and 2,387.68

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Solution

The fourth proportional to 3,279.34, 4,915.56 and 2,387.68 is: 3,579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.34 : 4,915.56 = 2,387.68 : x
  2. Step 2: Convert to fraction form
    3,279.34/4,915.56 = 2,387.68/x
  3. Step 3: Cross multiply
    3,279.34x = 4,915.56 × 2,387.68
  4. Step 4: Simplify right side
    3,279.34x = 11,736,784.30
  5. Step 5: Solve for x
    x = 11,736,784.30/3,279.34
  6. Step 6: Final answer
    x = 3,579.01

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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.