Home / 2,760.21-3,807.81-1,640.52

Finding the Fourth Proportional to 2,760.21, 3,807.81 and 1,640.52

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Solution

The fourth proportional to 2,760.21, 3,807.81 and 1,640.52 is: 2,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.21 : 3,807.81 = 1,640.52 : x
  2. Step 2: Convert to fraction form
    2,760.21/3,807.81 = 1,640.52/x
  3. Step 3: Cross multiply
    2,760.21x = 3,807.81 × 1,640.52
  4. Step 4: Simplify right side
    2,760.21x = 6,246,788.46
  5. Step 5: Solve for x
    x = 6,246,788.46/2,760.21
  6. Step 6: Final answer
    x = 2,263.16

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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.