Home / 4,102.72-6,152.40-2,651.20

Finding the Fourth Proportional to 4,102.72, 6,152.40 and 2,651.20

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Solution

The fourth proportional to 4,102.72, 6,152.40 and 2,651.20 is: 3,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.72 : 6,152.40 = 2,651.20 : x
  2. Step 2: Convert to fraction form
    4,102.72/6,152.40 = 2,651.20/x
  3. Step 3: Cross multiply
    4,102.72x = 6,152.40 × 2,651.20
  4. Step 4: Simplify right side
    4,102.72x = 16,311,242.88
  5. Step 5: Solve for x
    x = 16,311,242.88/4,102.72
  6. Step 6: Final answer
    x = 3,975.71

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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.