Home / 2,760.39-3,807.64-1,640.57

Finding the Fourth Proportional to 2,760.39, 3,807.64 and 1,640.57

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Solution

The fourth proportional to 2,760.39, 3,807.64 and 1,640.57 is: 2,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.39 : 3,807.64 = 1,640.57 : x
  2. Step 2: Convert to fraction form
    2,760.39/3,807.64 = 1,640.57/x
  3. Step 3: Cross multiply
    2,760.39x = 3,807.64 × 1,640.57
  4. Step 4: Simplify right side
    2,760.39x = 6,246,682.97
  5. Step 5: Solve for x
    x = 6,246,682.97/2,760.39
  6. Step 6: Final answer
    x = 2,262.97

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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.