Home / 3,138.04-4,320.62-2,664.94

Finding the Fourth Proportional to 3,138.04, 4,320.62 and 2,664.94

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Solution

The fourth proportional to 3,138.04, 4,320.62 and 2,664.94 is: 3,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.04 : 4,320.62 = 2,664.94 : x
  2. Step 2: Convert to fraction form
    3,138.04/4,320.62 = 2,664.94/x
  3. Step 3: Cross multiply
    3,138.04x = 4,320.62 × 2,664.94
  4. Step 4: Simplify right side
    3,138.04x = 11,514,193.06
  5. Step 5: Solve for x
    x = 11,514,193.06/3,138.04
  6. Step 6: Final answer
    x = 3,669.23

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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.