Home / 3,838.56-5,292.26-2,511.78

Finding the Fourth Proportional to 3,838.56, 5,292.26 and 2,511.78

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Solution

The fourth proportional to 3,838.56, 5,292.26 and 2,511.78 is: 3,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.56 : 5,292.26 = 2,511.78 : x
  2. Step 2: Convert to fraction form
    3,838.56/5,292.26 = 2,511.78/x
  3. Step 3: Cross multiply
    3,838.56x = 5,292.26 × 2,511.78
  4. Step 4: Simplify right side
    3,838.56x = 13,292,992.82
  5. Step 5: Solve for x
    x = 13,292,992.82/3,838.56
  6. Step 6: Final answer
    x = 3,463.02

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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.