Home / 7,931.72-11,898.92-2,736.38

Finding the Fourth Proportional to 7,931.72, 11,898.92 and 2,736.38

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Solution

The fourth proportional to 7,931.72, 11,898.92 and 2,736.38 is: 4,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.72 : 11,898.92 = 2,736.38 : x
  2. Step 2: Convert to fraction form
    7,931.72/11,898.92 = 2,736.38/x
  3. Step 3: Cross multiply
    7,931.72x = 11,898.92 × 2,736.38
  4. Step 4: Simplify right side
    7,931.72x = 32,559,966.71
  5. Step 5: Solve for x
    x = 32,559,966.71/7,931.72
  6. Step 6: Final answer
    x = 4,105.03

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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.