Home / 3,039.60-4,195.02-1,861.02

Finding the Fourth Proportional to 3,039.60, 4,195.02 and 1,861.02

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Solution

The fourth proportional to 3,039.60, 4,195.02 and 1,861.02 is: 2,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.60 : 4,195.02 = 1,861.02 : x
  2. Step 2: Convert to fraction form
    3,039.60/4,195.02 = 1,861.02/x
  3. Step 3: Cross multiply
    3,039.60x = 4,195.02 × 1,861.02
  4. Step 4: Simplify right side
    3,039.60x = 7,807,016.12
  5. Step 5: Solve for x
    x = 7,807,016.12/3,039.60
  6. Step 6: Final answer
    x = 2,568.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.