Home / 2,179.32-3,007.52-1,295.60

Finding the Fourth Proportional to 2,179.32, 3,007.52 and 1,295.60

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Solution

The fourth proportional to 2,179.32, 3,007.52 and 1,295.60 is: 1,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.32 : 3,007.52 = 1,295.60 : x
  2. Step 2: Convert to fraction form
    2,179.32/3,007.52 = 1,295.60/x
  3. Step 3: Cross multiply
    2,179.32x = 3,007.52 × 1,295.60
  4. Step 4: Simplify right side
    2,179.32x = 3,896,542.91
  5. Step 5: Solve for x
    x = 3,896,542.91/2,179.32
  6. Step 6: Final answer
    x = 1,787.96

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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.