Home / 2,946.79-4,066.46-1,620.48

Finding the Fourth Proportional to 2,946.79, 4,066.46 and 1,620.48

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Solution

The fourth proportional to 2,946.79, 4,066.46 and 1,620.48 is: 2,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.79 : 4,066.46 = 1,620.48 : x
  2. Step 2: Convert to fraction form
    2,946.79/4,066.46 = 1,620.48/x
  3. Step 3: Cross multiply
    2,946.79x = 4,066.46 × 1,620.48
  4. Step 4: Simplify right side
    2,946.79x = 6,589,621.15
  5. Step 5: Solve for x
    x = 6,589,621.15/2,946.79
  6. Step 6: Final answer
    x = 2,236.21

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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.