Home / 4,079.80-6,119.93-1,157.88

Finding the Fourth Proportional to 4,079.80, 6,119.93 and 1,157.88

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Solution

The fourth proportional to 4,079.80, 6,119.93 and 1,157.88 is: 1,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.80 : 6,119.93 = 1,157.88 : x
  2. Step 2: Convert to fraction form
    4,079.80/6,119.93 = 1,157.88/x
  3. Step 3: Cross multiply
    4,079.80x = 6,119.93 × 1,157.88
  4. Step 4: Simplify right side
    4,079.80x = 7,086,144.55
  5. Step 5: Solve for x
    x = 7,086,144.55/4,079.80
  6. Step 6: Final answer
    x = 1,736.89

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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.