Home / 3,918-5,876.68-1,576.35

Finding the Fourth Proportional to 3,918, 5,876.68 and 1,576.35

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Solution

The fourth proportional to 3,918, 5,876.68 and 1,576.35 is: 2,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918 : 5,876.68 = 1,576.35 : x
  2. Step 2: Convert to fraction form
    3,918/5,876.68 = 1,576.35/x
  3. Step 3: Cross multiply
    3,918x = 5,876.68 × 1,576.35
  4. Step 4: Simplify right side
    3,918x = 9,263,696.64
  5. Step 5: Solve for x
    x = 9,263,696.64/3,918
  6. Step 6: Final answer
    x = 2,364.39

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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.