Home / 3,924.63-5,415.96-2,132.09

Finding the Fourth Proportional to 3,924.63, 5,415.96 and 2,132.09

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Solution

The fourth proportional to 3,924.63, 5,415.96 and 2,132.09 is: 2,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.63 : 5,415.96 = 2,132.09 : x
  2. Step 2: Convert to fraction form
    3,924.63/5,415.96 = 2,132.09/x
  3. Step 3: Cross multiply
    3,924.63x = 5,415.96 × 2,132.09
  4. Step 4: Simplify right side
    3,924.63x = 11,547,328.92
  5. Step 5: Solve for x
    x = 11,547,328.92/3,924.63
  6. Step 6: Final answer
    x = 2,942.27

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1.5x scale

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.