Home / 2,179.55-3,007.86-1,295.44

Finding the Fourth Proportional to 2,179.55, 3,007.86 and 1,295.44

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Solution

The fourth proportional to 2,179.55, 3,007.86 and 1,295.44 is: 1,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.55 : 3,007.86 = 1,295.44 : x
  2. Step 2: Convert to fraction form
    2,179.55/3,007.86 = 1,295.44/x
  3. Step 3: Cross multiply
    2,179.55x = 3,007.86 × 1,295.44
  4. Step 4: Simplify right side
    2,179.55x = 3,896,502.16
  5. Step 5: Solve for x
    x = 3,896,502.16/2,179.55
  6. Step 6: Final answer
    x = 1,787.76

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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.