Home / 5,186.08-7,156.68-3,168.79

Finding the Fourth Proportional to 5,186.08, 7,156.68 and 3,168.79

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Solution

The fourth proportional to 5,186.08, 7,156.68 and 3,168.79 is: 4,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.08 : 7,156.68 = 3,168.79 : x
  2. Step 2: Convert to fraction form
    5,186.08/7,156.68 = 3,168.79/x
  3. Step 3: Cross multiply
    5,186.08x = 7,156.68 × 3,168.79
  4. Step 4: Simplify right side
    5,186.08x = 22,677,980.23
  5. Step 5: Solve for x
    x = 22,677,980.23/5,186.08
  6. Step 6: Final answer
    x = 4,372.86

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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.