Home / 7,955.34-11,928.10-2,689.85

Finding the Fourth Proportional to 7,955.34, 11,928.10 and 2,689.85

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Solution

The fourth proportional to 7,955.34, 11,928.10 and 2,689.85 is: 4,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.34 : 11,928.10 = 2,689.85 : x
  2. Step 2: Convert to fraction form
    7,955.34/11,928.10 = 2,689.85/x
  3. Step 3: Cross multiply
    7,955.34x = 11,928.10 × 2,689.85
  4. Step 4: Simplify right side
    7,955.34x = 32,084,799.79
  5. Step 5: Solve for x
    x = 32,084,799.79/7,955.34
  6. Step 6: Final answer
    x = 4,033.12

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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.