Home / 4,189.80-5,781.70-2,511.27

Finding the Fourth Proportional to 4,189.80, 5,781.70 and 2,511.27

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Solution

The fourth proportional to 4,189.80, 5,781.70 and 2,511.27 is: 3,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.80 : 5,781.70 = 2,511.27 : x
  2. Step 2: Convert to fraction form
    4,189.80/5,781.70 = 2,511.27/x
  3. Step 3: Cross multiply
    4,189.80x = 5,781.70 × 2,511.27
  4. Step 4: Simplify right side
    4,189.80x = 14,519,409.76
  5. Step 5: Solve for x
    x = 14,519,409.76/4,189.80
  6. Step 6: Final answer
    x = 3,465.42

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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.