Home / 3,918.08-5,405.46-2,384.48

Finding the Fourth Proportional to 3,918.08, 5,405.46 and 2,384.48

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Solution

The fourth proportional to 3,918.08, 5,405.46 and 2,384.48 is: 3,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.08 : 5,405.46 = 2,384.48 : x
  2. Step 2: Convert to fraction form
    3,918.08/5,405.46 = 2,384.48/x
  3. Step 3: Cross multiply
    3,918.08x = 5,405.46 × 2,384.48
  4. Step 4: Simplify right side
    3,918.08x = 12,889,211.26
  5. Step 5: Solve for x
    x = 12,889,211.26/3,918.08
  6. Step 6: Final answer
    x = 3,289.68

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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.