Home / 4,917.02-7,375.78-2,143.88

Finding the Fourth Proportional to 4,917.02, 7,375.78 and 2,143.88

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Solution

The fourth proportional to 4,917.02, 7,375.78 and 2,143.88 is: 3,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.02 : 7,375.78 = 2,143.88 : x
  2. Step 2: Convert to fraction form
    4,917.02/7,375.78 = 2,143.88/x
  3. Step 3: Cross multiply
    4,917.02x = 7,375.78 × 2,143.88
  4. Step 4: Simplify right side
    4,917.02x = 15,812,780.69
  5. Step 5: Solve for x
    x = 15,812,780.69/4,917.02
  6. Step 6: Final answer
    x = 3,215.93

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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.