Home / 4,078.96-5,628.94-2,215.96

Finding the Fourth Proportional to 4,078.96, 5,628.94 and 2,215.96

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Solution

The fourth proportional to 4,078.96, 5,628.94 and 2,215.96 is: 3,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.96 : 5,628.94 = 2,215.96 : x
  2. Step 2: Convert to fraction form
    4,078.96/5,628.94 = 2,215.96/x
  3. Step 3: Cross multiply
    4,078.96x = 5,628.94 × 2,215.96
  4. Step 4: Simplify right side
    4,078.96x = 12,473,505.88
  5. Step 5: Solve for x
    x = 12,473,505.88/4,078.96
  6. Step 6: Final answer
    x = 3,058.01

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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.