Home / 7,977.06-11,965.59-3,589.39

Finding the Fourth Proportional to 7,977.06, 11,965.59 and 3,589.39

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Solution

The fourth proportional to 7,977.06, 11,965.59 and 3,589.39 is: 5,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.06 : 11,965.59 = 3,589.39 : x
  2. Step 2: Convert to fraction form
    7,977.06/11,965.59 = 3,589.39/x
  3. Step 3: Cross multiply
    7,977.06x = 11,965.59 × 3,589.39
  4. Step 4: Simplify right side
    7,977.06x = 42,949,125.72
  5. Step 5: Solve for x
    x = 42,949,125.72/7,977.06
  6. Step 6: Final answer
    x = 5,384.08

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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.