Home / 4,189.43-5,781.30-2,511.79

Finding the Fourth Proportional to 4,189.43, 5,781.30 and 2,511.79

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Solution

The fourth proportional to 4,189.43, 5,781.30 and 2,511.79 is: 3,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.43 : 5,781.30 = 2,511.79 : x
  2. Step 2: Convert to fraction form
    4,189.43/5,781.30 = 2,511.79/x
  3. Step 3: Cross multiply
    4,189.43x = 5,781.30 × 2,511.79
  4. Step 4: Simplify right side
    4,189.43x = 14,521,411.53
  5. Step 5: Solve for x
    x = 14,521,411.53/4,189.43
  6. Step 6: Final answer
    x = 3,466.20

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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.