Home / 2,171.64-3,243.39-1,880.04

Finding the Fourth Proportional to 2,171.64, 3,243.39 and 1,880.04

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Solution

The fourth proportional to 2,171.64, 3,243.39 and 1,880.04 is: 2,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.64 : 3,243.39 = 1,880.04 : x
  2. Step 2: Convert to fraction form
    2,171.64/3,243.39 = 1,880.04/x
  3. Step 3: Cross multiply
    2,171.64x = 3,243.39 × 1,880.04
  4. Step 4: Simplify right side
    2,171.64x = 6,097,702.94
  5. Step 5: Solve for x
    x = 6,097,702.94/2,171.64
  6. Step 6: Final answer
    x = 2,807.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.