Home / 7,931.76-11,894.04-2,997.87

Finding the Fourth Proportional to 7,931.76, 11,894.04 and 2,997.87

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Solution

The fourth proportional to 7,931.76, 11,894.04 and 2,997.87 is: 4,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.76 : 11,894.04 = 2,997.87 : x
  2. Step 2: Convert to fraction form
    7,931.76/11,894.04 = 2,997.87/x
  3. Step 3: Cross multiply
    7,931.76x = 11,894.04 × 2,997.87
  4. Step 4: Simplify right side
    7,931.76x = 35,656,785.69
  5. Step 5: Solve for x
    x = 35,656,785.69/7,931.76
  6. Step 6: Final answer
    x = 4,495.44

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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.