Home / 3,894.48-5,374.42-2,126.09

Finding the Fourth Proportional to 3,894.48, 5,374.42 and 2,126.09

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Solution

The fourth proportional to 3,894.48, 5,374.42 and 2,126.09 is: 2,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.48 : 5,374.42 = 2,126.09 : x
  2. Step 2: Convert to fraction form
    3,894.48/5,374.42 = 2,126.09/x
  3. Step 3: Cross multiply
    3,894.48x = 5,374.42 × 2,126.09
  4. Step 4: Simplify right side
    3,894.48x = 11,426,508.74
  5. Step 5: Solve for x
    x = 11,426,508.74/3,894.48
  6. Step 6: Final answer
    x = 2,934.03

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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.