Home / 3,967.08-5,475.12-2,288.76

Finding the Fourth Proportional to 3,967.08, 5,475.12 and 2,288.76

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Solution

The fourth proportional to 3,967.08, 5,475.12 and 2,288.76 is: 3,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.08 : 5,475.12 = 2,288.76 : x
  2. Step 2: Convert to fraction form
    3,967.08/5,475.12 = 2,288.76/x
  3. Step 3: Cross multiply
    3,967.08x = 5,475.12 × 2,288.76
  4. Step 4: Simplify right side
    3,967.08x = 12,531,235.65
  5. Step 5: Solve for x
    x = 12,531,235.65/3,967.08
  6. Step 6: Final answer
    x = 3,158.81

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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.