Home / 2,825.28-4,239-1,838.09

Finding the Fourth Proportional to 2,825.28, 4,239 and 1,838.09

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Solution

The fourth proportional to 2,825.28, 4,239 and 1,838.09 is: 2,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.28 : 4,239 = 1,838.09 : x
  2. Step 2: Convert to fraction form
    2,825.28/4,239 = 1,838.09/x
  3. Step 3: Cross multiply
    2,825.28x = 4,239 × 1,838.09
  4. Step 4: Simplify right side
    2,825.28x = 7,791,674.11
  5. Step 5: Solve for x
    x = 7,791,674.11/2,825.28
  6. Step 6: Final answer
    x = 2,757.84

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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.