Home / 2,784.97-3,843.30-1,666.72

Finding the Fourth Proportional to 2,784.97, 3,843.30 and 1,666.72

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Solution

The fourth proportional to 2,784.97, 3,843.30 and 1,666.72 is: 2,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.97 : 3,843.30 = 1,666.72 : x
  2. Step 2: Convert to fraction form
    2,784.97/3,843.30 = 1,666.72/x
  3. Step 3: Cross multiply
    2,784.97x = 3,843.30 × 1,666.72
  4. Step 4: Simplify right side
    2,784.97x = 6,405,704.98
  5. Step 5: Solve for x
    x = 6,405,704.98/2,784.97
  6. Step 6: Final answer
    x = 2,300.10

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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.