Home / 4,078.92-6,118.80-1,581.41

Finding the Fourth Proportional to 4,078.92, 6,118.80 and 1,581.41

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Solution

The fourth proportional to 4,078.92, 6,118.80 and 1,581.41 is: 2,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.92 : 6,118.80 = 1,581.41 : x
  2. Step 2: Convert to fraction form
    4,078.92/6,118.80 = 1,581.41/x
  3. Step 3: Cross multiply
    4,078.92x = 6,118.80 × 1,581.41
  4. Step 4: Simplify right side
    4,078.92x = 9,676,331.51
  5. Step 5: Solve for x
    x = 9,676,331.51/4,078.92
  6. Step 6: Final answer
    x = 2,372.28

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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.