Home / 3,780.40-5,671.32-1,183.36

Finding the Fourth Proportional to 3,780.40, 5,671.32 and 1,183.36

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Solution

The fourth proportional to 3,780.40, 5,671.32 and 1,183.36 is: 1,775.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.40 : 5,671.32 = 1,183.36 : x
  2. Step 2: Convert to fraction form
    3,780.40/5,671.32 = 1,183.36/x
  3. Step 3: Cross multiply
    3,780.40x = 5,671.32 × 1,183.36
  4. Step 4: Simplify right side
    3,780.40x = 6,711,213.24
  5. Step 5: Solve for x
    x = 6,711,213.24/3,780.40
  6. Step 6: Final answer
    x = 1,775.27

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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.