Home / 5,186.94-7,149.51-3,612.30

Finding the Fourth Proportional to 5,186.94, 7,149.51 and 3,612.30

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Solution

The fourth proportional to 5,186.94, 7,149.51 and 3,612.30 is: 4,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.94 : 7,149.51 = 3,612.30 : x
  2. Step 2: Convert to fraction form
    5,186.94/7,149.51 = 3,612.30/x
  3. Step 3: Cross multiply
    5,186.94x = 7,149.51 × 3,612.30
  4. Step 4: Simplify right side
    5,186.94x = 25,826,174.97
  5. Step 5: Solve for x
    x = 25,826,174.97/5,186.94
  6. Step 6: Final answer
    x = 4,979.08

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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.