Home / 2,589.11-3,885.47-1,127.51

Finding the Fourth Proportional to 2,589.11, 3,885.47 and 1,127.51

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Solution

The fourth proportional to 2,589.11, 3,885.47 and 1,127.51 is: 1,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.11 : 3,885.47 = 1,127.51 : x
  2. Step 2: Convert to fraction form
    2,589.11/3,885.47 = 1,127.51/x
  3. Step 3: Cross multiply
    2,589.11x = 3,885.47 × 1,127.51
  4. Step 4: Simplify right side
    2,589.11x = 4,380,906.28
  5. Step 5: Solve for x
    x = 4,380,906.28/2,589.11
  6. Step 6: Final answer
    x = 1,692.05

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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.