Home / 1,996.60-2,753.90-1,623.58

Finding the Fourth Proportional to 1,996.60, 2,753.90 and 1,623.58

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Solution

The fourth proportional to 1,996.60, 2,753.90 and 1,623.58 is: 2,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.60 : 2,753.90 = 1,623.58 : x
  2. Step 2: Convert to fraction form
    1,996.60/2,753.90 = 1,623.58/x
  3. Step 3: Cross multiply
    1,996.60x = 2,753.90 × 1,623.58
  4. Step 4: Simplify right side
    1,996.60x = 4,471,176.96
  5. Step 5: Solve for x
    x = 4,471,176.96/1,996.60
  6. Step 6: Final answer
    x = 2,239.40

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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.