Home / 7,977.18-11,965.78-3,589.51

Finding the Fourth Proportional to 7,977.18, 11,965.78 and 3,589.51

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Solution

The fourth proportional to 7,977.18, 11,965.78 and 3,589.51 is: 5,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.18 : 11,965.78 = 3,589.51 : x
  2. Step 2: Convert to fraction form
    7,977.18/11,965.78 = 3,589.51/x
  3. Step 3: Cross multiply
    7,977.18x = 11,965.78 × 3,589.51
  4. Step 4: Simplify right side
    7,977.18x = 42,951,298.93
  5. Step 5: Solve for x
    x = 42,951,298.93/7,977.18
  6. Step 6: Final answer
    x = 5,384.27

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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.