Home / 2,776.32-3,829.19-1,936.76

Finding the Fourth Proportional to 2,776.32, 3,829.19 and 1,936.76

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Solution

The fourth proportional to 2,776.32, 3,829.19 and 1,936.76 is: 2,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.32 : 3,829.19 = 1,936.76 : x
  2. Step 2: Convert to fraction form
    2,776.32/3,829.19 = 1,936.76/x
  3. Step 3: Cross multiply
    2,776.32x = 3,829.19 × 1,936.76
  4. Step 4: Simplify right side
    2,776.32x = 7,416,193.19
  5. Step 5: Solve for x
    x = 7,416,193.19/2,776.32
  6. Step 6: Final answer
    x = 2,671.23

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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.