Home / 3,186.05-4,395.89-1,788.77

Finding the Fourth Proportional to 3,186.05, 4,395.89 and 1,788.77

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Solution

The fourth proportional to 3,186.05, 4,395.89 and 1,788.77 is: 2,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.05 : 4,395.89 = 1,788.77 : x
  2. Step 2: Convert to fraction form
    3,186.05/4,395.89 = 1,788.77/x
  3. Step 3: Cross multiply
    3,186.05x = 4,395.89 × 1,788.77
  4. Step 4: Simplify right side
    3,186.05x = 7,863,227.21
  5. Step 5: Solve for x
    x = 7,863,227.21/3,186.05
  6. Step 6: Final answer
    x = 2,468.02

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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.