Home / 4,078.88-5,628.85-2,422.88

Finding the Fourth Proportional to 4,078.88, 5,628.85 and 2,422.88

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Solution

The fourth proportional to 4,078.88, 5,628.85 and 2,422.88 is: 3,343.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.88 : 5,628.85 = 2,422.88 : x
  2. Step 2: Convert to fraction form
    4,078.88/5,628.85 = 2,422.88/x
  3. Step 3: Cross multiply
    4,078.88x = 5,628.85 × 2,422.88
  4. Step 4: Simplify right side
    4,078.88x = 13,637,993.89
  5. Step 5: Solve for x
    x = 13,637,993.89/4,078.88
  6. Step 6: Final answer
    x = 3,343.57

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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.