Home / 4,079.52-6,122.16-3,157.20

Finding the Fourth Proportional to 4,079.52, 6,122.16 and 3,157.20

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Solution

The fourth proportional to 4,079.52, 6,122.16 and 3,157.20 is: 4,738.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.52 : 6,122.16 = 3,157.20 : x
  2. Step 2: Convert to fraction form
    4,079.52/6,122.16 = 3,157.20/x
  3. Step 3: Cross multiply
    4,079.52x = 6,122.16 × 3,157.20
  4. Step 4: Simplify right side
    4,079.52x = 19,328,883.55
  5. Step 5: Solve for x
    x = 19,328,883.55/4,079.52
  6. Step 6: Final answer
    x = 4,738.03

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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.