Home / 3,581.60-4,942.60-2,009.70

Finding the Fourth Proportional to 3,581.60, 4,942.60 and 2,009.70

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Solution

The fourth proportional to 3,581.60, 4,942.60 and 2,009.70 is: 2,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.60 : 4,942.60 = 2,009.70 : x
  2. Step 2: Convert to fraction form
    3,581.60/4,942.60 = 2,009.70/x
  3. Step 3: Cross multiply
    3,581.60x = 4,942.60 × 2,009.70
  4. Step 4: Simplify right side
    3,581.60x = 9,933,143.22
  5. Step 5: Solve for x
    x = 9,933,143.22/3,581.60
  6. Step 6: Final answer
    x = 2,773.38

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1.5x scale

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.