Home / 5,550.34-7,660.15-3,160.90

Finding the Fourth Proportional to 5,550.34, 7,660.15 and 3,160.90

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Solution

The fourth proportional to 5,550.34, 7,660.15 and 3,160.90 is: 4,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.34 : 7,660.15 = 3,160.90 : x
  2. Step 2: Convert to fraction form
    5,550.34/7,660.15 = 3,160.90/x
  3. Step 3: Cross multiply
    5,550.34x = 7,660.15 × 3,160.90
  4. Step 4: Simplify right side
    5,550.34x = 24,212,968.14
  5. Step 5: Solve for x
    x = 24,212,968.14/5,550.34
  6. Step 6: Final answer
    x = 4,362.43

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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.