Home / 3,664.70-5,487.30-1,929.68

Finding the Fourth Proportional to 3,664.70, 5,487.30 and 1,929.68

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Solution

The fourth proportional to 3,664.70, 5,487.30 and 1,929.68 is: 2,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.70 : 5,487.30 = 1,929.68 : x
  2. Step 2: Convert to fraction form
    3,664.70/5,487.30 = 1,929.68/x
  3. Step 3: Cross multiply
    3,664.70x = 5,487.30 × 1,929.68
  4. Step 4: Simplify right side
    3,664.70x = 10,588,733.06
  5. Step 5: Solve for x
    x = 10,588,733.06/3,664.70
  6. Step 6: Final answer
    x = 2,889.39

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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.