Home / 3,967.34-5,474.39-2,288.79

Finding the Fourth Proportional to 3,967.34, 5,474.39 and 2,288.79

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Solution

The fourth proportional to 3,967.34, 5,474.39 and 2,288.79 is: 3,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.34 : 5,474.39 = 2,288.79 : x
  2. Step 2: Convert to fraction form
    3,967.34/5,474.39 = 2,288.79/x
  3. Step 3: Cross multiply
    3,967.34x = 5,474.39 × 2,288.79
  4. Step 4: Simplify right side
    3,967.34x = 12,529,717.64
  5. Step 5: Solve for x
    x = 12,529,717.64/3,967.34
  6. Step 6: Final answer
    x = 3,158.22

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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.