Home / 2,947.03-4,066.75-1,620.86

Finding the Fourth Proportional to 2,947.03, 4,066.75 and 1,620.86

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Solution

The fourth proportional to 2,947.03, 4,066.75 and 1,620.86 is: 2,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.03 : 4,066.75 = 1,620.86 : x
  2. Step 2: Convert to fraction form
    2,947.03/4,066.75 = 1,620.86/x
  3. Step 3: Cross multiply
    2,947.03x = 4,066.75 × 1,620.86
  4. Step 4: Simplify right side
    2,947.03x = 6,591,604.98
  5. Step 5: Solve for x
    x = 6,591,604.98/2,947.03
  6. Step 6: Final answer
    x = 2,236.70

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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.