Home / 2,119.72-3,175.50-1,893.64

Finding the Fourth Proportional to 2,119.72, 3,175.50 and 1,893.64

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Solution

The fourth proportional to 2,119.72, 3,175.50 and 1,893.64 is: 2,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.72 : 3,175.50 = 1,893.64 : x
  2. Step 2: Convert to fraction form
    2,119.72/3,175.50 = 1,893.64/x
  3. Step 3: Cross multiply
    2,119.72x = 3,175.50 × 1,893.64
  4. Step 4: Simplify right side
    2,119.72x = 6,013,253.82
  5. Step 5: Solve for x
    x = 6,013,253.82/2,119.72
  6. Step 6: Final answer
    x = 2,836.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.