Home / 5,427.30-8,138.88-2,960.80

Finding the Fourth Proportional to 5,427.30, 8,138.88 and 2,960.80

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Solution

The fourth proportional to 5,427.30, 8,138.88 and 2,960.80 is: 4,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.30 : 8,138.88 = 2,960.80 : x
  2. Step 2: Convert to fraction form
    5,427.30/8,138.88 = 2,960.80/x
  3. Step 3: Cross multiply
    5,427.30x = 8,138.88 × 2,960.80
  4. Step 4: Simplify right side
    5,427.30x = 24,097,621.34
  5. Step 5: Solve for x
    x = 24,097,621.34/5,427.30
  6. Step 6: Final answer
    x = 4,440.07

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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.