Home / 4,129.75-6,195.40-1,664.77

Finding the Fourth Proportional to 4,129.75, 6,195.40 and 1,664.77

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Solution

The fourth proportional to 4,129.75, 6,195.40 and 1,664.77 is: 2,497.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.75 : 6,195.40 = 1,664.77 : x
  2. Step 2: Convert to fraction form
    4,129.75/6,195.40 = 1,664.77/x
  3. Step 3: Cross multiply
    4,129.75x = 6,195.40 × 1,664.77
  4. Step 4: Simplify right side
    4,129.75x = 10,313,916.06
  5. Step 5: Solve for x
    x = 10,313,916.06/4,129.75
  6. Step 6: Final answer
    x = 2,497.47

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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.