Home / 3,188.92-4,400.65-1,772.58

Finding the Fourth Proportional to 3,188.92, 4,400.65 and 1,772.58

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Solution

The fourth proportional to 3,188.92, 4,400.65 and 1,772.58 is: 2,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.92 : 4,400.65 = 1,772.58 : x
  2. Step 2: Convert to fraction form
    3,188.92/4,400.65 = 1,772.58/x
  3. Step 3: Cross multiply
    3,188.92x = 4,400.65 × 1,772.58
  4. Step 4: Simplify right side
    3,188.92x = 7,800,499.75
  5. Step 5: Solve for x
    x = 7,800,499.75/3,188.92
  6. Step 6: Final answer
    x = 2,446.13

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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.