Home / 4,078.92-5,628.84-2,215.92

Finding the Fourth Proportional to 4,078.92, 5,628.84 and 2,215.92

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Solution

The fourth proportional to 4,078.92, 5,628.84 and 2,215.92 is: 3,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.92 : 5,628.84 = 2,215.92 : x
  2. Step 2: Convert to fraction form
    4,078.92/5,628.84 = 2,215.92/x
  3. Step 3: Cross multiply
    4,078.92x = 5,628.84 × 2,215.92
  4. Step 4: Simplify right side
    4,078.92x = 12,473,059.13
  5. Step 5: Solve for x
    x = 12,473,059.13/4,078.92
  6. Step 6: Final answer
    x = 3,057.93

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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.