Home / 2,076.80-2,863.92-1,330.64

Finding the Fourth Proportional to 2,076.80, 2,863.92 and 1,330.64

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Solution

The fourth proportional to 2,076.80, 2,863.92 and 1,330.64 is: 1,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.80 : 2,863.92 = 1,330.64 : x
  2. Step 2: Convert to fraction form
    2,076.80/2,863.92 = 1,330.64/x
  3. Step 3: Cross multiply
    2,076.80x = 2,863.92 × 1,330.64
  4. Step 4: Simplify right side
    2,076.80x = 3,810,846.51
  5. Step 5: Solve for x
    x = 3,810,846.51/2,076.80
  6. Step 6: Final answer
    x = 1,834.96

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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.