Home / 1,838.26-2,756.58-1,143.88

Finding the Fourth Proportional to 1,838.26, 2,756.58 and 1,143.88

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Solution

The fourth proportional to 1,838.26, 2,756.58 and 1,143.88 is: 1,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.26 : 2,756.58 = 1,143.88 : x
  2. Step 2: Convert to fraction form
    1,838.26/2,756.58 = 1,143.88/x
  3. Step 3: Cross multiply
    1,838.26x = 2,756.58 × 1,143.88
  4. Step 4: Simplify right side
    1,838.26x = 3,153,196.73
  5. Step 5: Solve for x
    x = 3,153,196.73/1,838.26
  6. Step 6: Final answer
    x = 1,715.32

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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.