Home / 4,079.88-6,119.62-1,157.81

Finding the Fourth Proportional to 4,079.88, 6,119.62 and 1,157.81

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Solution

The fourth proportional to 4,079.88, 6,119.62 and 1,157.81 is: 1,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.88 : 6,119.62 = 1,157.81 : x
  2. Step 2: Convert to fraction form
    4,079.88/6,119.62 = 1,157.81/x
  3. Step 3: Cross multiply
    4,079.88x = 6,119.62 × 1,157.81
  4. Step 4: Simplify right side
    4,079.88x = 7,085,323.74
  5. Step 5: Solve for x
    x = 7,085,323.74/4,079.88
  6. Step 6: Final answer
    x = 1,736.65

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1.5x scale

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.