Home / 2,872.46-3,963.94-1,693.91

Finding the Fourth Proportional to 2,872.46, 3,963.94 and 1,693.91

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Solution

The fourth proportional to 2,872.46, 3,963.94 and 1,693.91 is: 2,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.46 : 3,963.94 = 1,693.91 : x
  2. Step 2: Convert to fraction form
    2,872.46/3,963.94 = 1,693.91/x
  3. Step 3: Cross multiply
    2,872.46x = 3,963.94 × 1,693.91
  4. Step 4: Simplify right side
    2,872.46x = 6,714,563.28
  5. Step 5: Solve for x
    x = 6,714,563.28/2,872.46
  6. Step 6: Final answer
    x = 2,337.56

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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.