Home / 4,078.56-5,628.52-2,215.56

Finding the Fourth Proportional to 4,078.56, 5,628.52 and 2,215.56

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Solution

The fourth proportional to 4,078.56, 5,628.52 and 2,215.56 is: 3,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.56 : 5,628.52 = 2,215.56 : x
  2. Step 2: Convert to fraction form
    4,078.56/5,628.52 = 2,215.56/x
  3. Step 3: Cross multiply
    4,078.56x = 5,628.52 × 2,215.56
  4. Step 4: Simplify right side
    4,078.56x = 12,470,323.77
  5. Step 5: Solve for x
    x = 12,470,323.77/4,078.56
  6. Step 6: Final answer
    x = 3,057.53

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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.