Home / 7,141.23-10,709.78-2,757.69

Finding the Fourth Proportional to 7,141.23, 10,709.78 and 2,757.69

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Solution

The fourth proportional to 7,141.23, 10,709.78 and 2,757.69 is: 4,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.23 : 10,709.78 = 2,757.69 : x
  2. Step 2: Convert to fraction form
    7,141.23/10,709.78 = 2,757.69/x
  3. Step 3: Cross multiply
    7,141.23x = 10,709.78 × 2,757.69
  4. Step 4: Simplify right side
    7,141.23x = 29,534,239.42
  5. Step 5: Solve for x
    x = 29,534,239.42/7,141.23
  6. Step 6: Final answer
    x = 4,135.74

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1.5x scale

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.