Home / 2,783.92-4,159.56-2,687.04

Finding the Fourth Proportional to 2,783.92, 4,159.56 and 2,687.04

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Solution

The fourth proportional to 2,783.92, 4,159.56 and 2,687.04 is: 4,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.92 : 4,159.56 = 2,687.04 : x
  2. Step 2: Convert to fraction form
    2,783.92/4,159.56 = 2,687.04/x
  3. Step 3: Cross multiply
    2,783.92x = 4,159.56 × 2,687.04
  4. Step 4: Simplify right side
    2,783.92x = 11,176,904.10
  5. Step 5: Solve for x
    x = 11,176,904.10/2,783.92
  6. Step 6: Final answer
    x = 4,014.81

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1.5x scale

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.