Home / 2,101.11-3,150.28-1,176.77

Finding the Fourth Proportional to 2,101.11, 3,150.28 and 1,176.77

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Solution

The fourth proportional to 2,101.11, 3,150.28 and 1,176.77 is: 1,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.11 : 3,150.28 = 1,176.77 : x
  2. Step 2: Convert to fraction form
    2,101.11/3,150.28 = 1,176.77/x
  3. Step 3: Cross multiply
    2,101.11x = 3,150.28 × 1,176.77
  4. Step 4: Simplify right side
    2,101.11x = 3,707,155.00
  5. Step 5: Solve for x
    x = 3,707,155.00/2,101.11
  6. Step 6: Final answer
    x = 1,764.38

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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.