Home / 7,451.37-11,178.79-2,186.17

Finding the Fourth Proportional to 7,451.37, 11,178.79 and 2,186.17

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Solution

The fourth proportional to 7,451.37, 11,178.79 and 2,186.17 is: 3,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.37 : 11,178.79 = 2,186.17 : x
  2. Step 2: Convert to fraction form
    7,451.37/11,178.79 = 2,186.17/x
  3. Step 3: Cross multiply
    7,451.37x = 11,178.79 × 2,186.17
  4. Step 4: Simplify right side
    7,451.37x = 24,438,739.51
  5. Step 5: Solve for x
    x = 24,438,739.51/7,451.37
  6. Step 6: Final answer
    x = 3,279.76

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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.