Home / 3,186.51-4,777.44-2,143.92

Finding the Fourth Proportional to 3,186.51, 4,777.44 and 2,143.92

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Solution

The fourth proportional to 3,186.51, 4,777.44 and 2,143.92 is: 3,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.51 : 4,777.44 = 2,143.92 : x
  2. Step 2: Convert to fraction form
    3,186.51/4,777.44 = 2,143.92/x
  3. Step 3: Cross multiply
    3,186.51x = 4,777.44 × 2,143.92
  4. Step 4: Simplify right side
    3,186.51x = 10,242,449.16
  5. Step 5: Solve for x
    x = 10,242,449.16/3,186.51
  6. Step 6: Final answer
    x = 3,214.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.