Home / 2,179.55-3,009.24-1,295.64

Finding the Fourth Proportional to 2,179.55, 3,009.24 and 1,295.64

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Solution

The fourth proportional to 2,179.55, 3,009.24 and 1,295.64 is: 1,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.55 : 3,009.24 = 1,295.64 : x
  2. Step 2: Convert to fraction form
    2,179.55/3,009.24 = 1,295.64/x
  3. Step 3: Cross multiply
    2,179.55x = 3,009.24 × 1,295.64
  4. Step 4: Simplify right side
    2,179.55x = 3,898,891.71
  5. Step 5: Solve for x
    x = 3,898,891.71/2,179.55
  6. Step 6: Final answer
    x = 1,788.86

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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.