Home / 7,725.32-11,588-3,107.24

Finding the Fourth Proportional to 7,725.32, 11,588 and 3,107.24

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Solution

The fourth proportional to 7,725.32, 11,588 and 3,107.24 is: 4,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.32 : 11,588 = 3,107.24 : x
  2. Step 2: Convert to fraction form
    7,725.32/11,588 = 3,107.24/x
  3. Step 3: Cross multiply
    7,725.32x = 11,588 × 3,107.24
  4. Step 4: Simplify right side
    7,725.32x = 36,006,697.12
  5. Step 5: Solve for x
    x = 36,006,697.12/7,725.32
  6. Step 6: Final answer
    x = 4,660.87

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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.