Home / 5,518.78-7,616.26-3,160.88

Finding the Fourth Proportional to 5,518.78, 7,616.26 and 3,160.88

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Solution

The fourth proportional to 5,518.78, 7,616.26 and 3,160.88 is: 4,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.78 : 7,616.26 = 3,160.88 : x
  2. Step 2: Convert to fraction form
    5,518.78/7,616.26 = 3,160.88/x
  3. Step 3: Cross multiply
    5,518.78x = 7,616.26 × 3,160.88
  4. Step 4: Simplify right side
    5,518.78x = 24,074,083.91
  5. Step 5: Solve for x
    x = 24,074,083.91/5,518.78
  6. Step 6: Final answer
    x = 4,362.21

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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.