Home / 2,889.62-3,988.18-1,711.26

Finding the Fourth Proportional to 2,889.62, 3,988.18 and 1,711.26

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Solution

The fourth proportional to 2,889.62, 3,988.18 and 1,711.26 is: 2,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.62 : 3,988.18 = 1,711.26 : x
  2. Step 2: Convert to fraction form
    2,889.62/3,988.18 = 1,711.26/x
  3. Step 3: Cross multiply
    2,889.62x = 3,988.18 × 1,711.26
  4. Step 4: Simplify right side
    2,889.62x = 6,824,812.91
  5. Step 5: Solve for x
    x = 6,824,812.91/2,889.62
  6. Step 6: Final answer
    x = 2,361.84

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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.