Home / 2,638.16-3,948.66-1,944.55

Finding the Fourth Proportional to 2,638.16, 3,948.66 and 1,944.55

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Solution

The fourth proportional to 2,638.16, 3,948.66 and 1,944.55 is: 2,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.16 : 3,948.66 = 1,944.55 : x
  2. Step 2: Convert to fraction form
    2,638.16/3,948.66 = 1,944.55/x
  3. Step 3: Cross multiply
    2,638.16x = 3,948.66 × 1,944.55
  4. Step 4: Simplify right side
    2,638.16x = 7,678,357.08
  5. Step 5: Solve for x
    x = 7,678,357.08/2,638.16
  6. Step 6: Final answer
    x = 2,910.50

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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.