Home / 5,176.20-7,143.34-3,666.49

Finding the Fourth Proportional to 5,176.20, 7,143.34 and 3,666.49

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Solution

The fourth proportional to 5,176.20, 7,143.34 and 3,666.49 is: 5,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.20 : 7,143.34 = 3,666.49 : x
  2. Step 2: Convert to fraction form
    5,176.20/7,143.34 = 3,666.49/x
  3. Step 3: Cross multiply
    5,176.20x = 7,143.34 × 3,666.49
  4. Step 4: Simplify right side
    5,176.20x = 26,190,984.62
  5. Step 5: Solve for x
    x = 26,190,984.62/5,176.20
  6. Step 6: Final answer
    x = 5,059.88

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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.