Home / 4,079.79-6,119.67-1,157.72

Finding the Fourth Proportional to 4,079.79, 6,119.67 and 1,157.72

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Solution

The fourth proportional to 4,079.79, 6,119.67 and 1,157.72 is: 1,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.79 : 6,119.67 = 1,157.72 : x
  2. Step 2: Convert to fraction form
    4,079.79/6,119.67 = 1,157.72/x
  3. Step 3: Cross multiply
    4,079.79x = 6,119.67 × 1,157.72
  4. Step 4: Simplify right side
    4,079.79x = 7,084,833.75
  5. Step 5: Solve for x
    x = 7,084,833.75/4,079.79
  6. Step 6: Final answer
    x = 1,736.57

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Double scale
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Similar ratio
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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.