Home / 2,869.78-4,304.94-1,138

Finding the Fourth Proportional to 2,869.78, 4,304.94 and 1,138

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Solution

The fourth proportional to 2,869.78, 4,304.94 and 1,138 is: 1,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.78 : 4,304.94 = 1,138 : x
  2. Step 2: Convert to fraction form
    2,869.78/4,304.94 = 1,138/x
  3. Step 3: Cross multiply
    2,869.78x = 4,304.94 × 1,138
  4. Step 4: Simplify right side
    2,869.78x = 4,899,021.72
  5. Step 5: Solve for x
    x = 4,899,021.72/2,869.78
  6. Step 6: Final answer
    x = 1,707.11

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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.