Home / 3,861.74-5,785.76-1,395.02

Finding the Fourth Proportional to 3,861.74, 5,785.76 and 1,395.02

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Solution

The fourth proportional to 3,861.74, 5,785.76 and 1,395.02 is: 2,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.74 : 5,785.76 = 1,395.02 : x
  2. Step 2: Convert to fraction form
    3,861.74/5,785.76 = 1,395.02/x
  3. Step 3: Cross multiply
    3,861.74x = 5,785.76 × 1,395.02
  4. Step 4: Simplify right side
    3,861.74x = 8,071,268.87
  5. Step 5: Solve for x
    x = 8,071,268.87/3,861.74
  6. Step 6: Final answer
    x = 2,090.06

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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.