Home / 2,946.75-4,066.42-1,620.45

Finding the Fourth Proportional to 2,946.75, 4,066.42 and 1,620.45

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Solution

The fourth proportional to 2,946.75, 4,066.42 and 1,620.45 is: 2,236.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.75 : 4,066.42 = 1,620.45 : x
  2. Step 2: Convert to fraction form
    2,946.75/4,066.42 = 1,620.45/x
  3. Step 3: Cross multiply
    2,946.75x = 4,066.42 × 1,620.45
  4. Step 4: Simplify right side
    2,946.75x = 6,589,401.85
  5. Step 5: Solve for x
    x = 6,589,401.85/2,946.75
  6. Step 6: Final answer
    x = 2,236.16

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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.