Home / 5,188.69-7,160.61-2,830.96

Finding the Fourth Proportional to 5,188.69, 7,160.61 and 2,830.96

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Solution

The fourth proportional to 5,188.69, 7,160.61 and 2,830.96 is: 3,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.69 : 7,160.61 = 2,830.96 : x
  2. Step 2: Convert to fraction form
    5,188.69/7,160.61 = 2,830.96/x
  3. Step 3: Cross multiply
    5,188.69x = 7,160.61 × 2,830.96
  4. Step 4: Simplify right side
    5,188.69x = 20,271,400.49
  5. Step 5: Solve for x
    x = 20,271,400.49/5,188.69
  6. Step 6: Final answer
    x = 3,906.84

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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.