Home / 5,110.68-7,052.64-2,872.50

Finding the Fourth Proportional to 5,110.68, 7,052.64 and 2,872.50

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Solution

The fourth proportional to 5,110.68, 7,052.64 and 2,872.50 is: 3,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.68 : 7,052.64 = 2,872.50 : x
  2. Step 2: Convert to fraction form
    5,110.68/7,052.64 = 2,872.50/x
  3. Step 3: Cross multiply
    5,110.68x = 7,052.64 × 2,872.50
  4. Step 4: Simplify right side
    5,110.68x = 20,258,708.40
  5. Step 5: Solve for x
    x = 20,258,708.40/5,110.68
  6. Step 6: Final answer
    x = 3,963.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.