Home / 2,946.90-4,066.94-1,620.63

Finding the Fourth Proportional to 2,946.90, 4,066.94 and 1,620.63

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Solution

The fourth proportional to 2,946.90, 4,066.94 and 1,620.63 is: 2,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.90 : 4,066.94 = 1,620.63 : x
  2. Step 2: Convert to fraction form
    2,946.90/4,066.94 = 1,620.63/x
  3. Step 3: Cross multiply
    2,946.90x = 4,066.94 × 1,620.63
  4. Step 4: Simplify right side
    2,946.90x = 6,591,004.97
  5. Step 5: Solve for x
    x = 6,591,004.97/2,946.90
  6. Step 6: Final answer
    x = 2,236.59

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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.