Home / 3,971.74-5,956.80-1,505.72

Finding the Fourth Proportional to 3,971.74, 5,956.80 and 1,505.72

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Solution

The fourth proportional to 3,971.74, 5,956.80 and 1,505.72 is: 2,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.74 : 5,956.80 = 1,505.72 : x
  2. Step 2: Convert to fraction form
    3,971.74/5,956.80 = 1,505.72/x
  3. Step 3: Cross multiply
    3,971.74x = 5,956.80 × 1,505.72
  4. Step 4: Simplify right side
    3,971.74x = 8,969,272.90
  5. Step 5: Solve for x
    x = 8,969,272.90/3,971.74
  6. Step 6: Final answer
    x = 2,258.27

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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.