Home / 2,589.09-3,880.92-1,127.85

Finding the Fourth Proportional to 2,589.09, 3,880.92 and 1,127.85

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Solution

The fourth proportional to 2,589.09, 3,880.92 and 1,127.85 is: 1,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.09 : 3,880.92 = 1,127.85 : x
  2. Step 2: Convert to fraction form
    2,589.09/3,880.92 = 1,127.85/x
  3. Step 3: Cross multiply
    2,589.09x = 3,880.92 × 1,127.85
  4. Step 4: Simplify right side
    2,589.09x = 4,377,095.62
  5. Step 5: Solve for x
    x = 4,377,095.62/2,589.09
  6. Step 6: Final answer
    x = 1,690.59

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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.