Home / 4,078.29-5,628.15-2,215.29

Finding the Fourth Proportional to 4,078.29, 5,628.15 and 2,215.29

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Solution

The fourth proportional to 4,078.29, 5,628.15 and 2,215.29 is: 3,057.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.29 : 5,628.15 = 2,215.29 : x
  2. Step 2: Convert to fraction form
    4,078.29/5,628.15 = 2,215.29/x
  3. Step 3: Cross multiply
    4,078.29x = 5,628.15 × 2,215.29
  4. Step 4: Simplify right side
    4,078.29x = 12,467,984.41
  5. Step 5: Solve for x
    x = 12,467,984.41/4,078.29
  6. Step 6: Final answer
    x = 3,057.16

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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.