Home / 2,717.64-4,076.88-985.92

Finding the Fourth Proportional to 2,717.64, 4,076.88 and 985.92

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Solution

The fourth proportional to 2,717.64, 4,076.88 and 985.92 is: 1,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.64 : 4,076.88 = 985.92 : x
  2. Step 2: Convert to fraction form
    2,717.64/4,076.88 = 985.92/x
  3. Step 3: Cross multiply
    2,717.64x = 4,076.88 × 985.92
  4. Step 4: Simplify right side
    2,717.64x = 4,019,477.53
  5. Step 5: Solve for x
    x = 4,019,477.53/2,717.64
  6. Step 6: Final answer
    x = 1,479.03

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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.