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Finding the Fourth Proportional to 3,894.76, 5,374.92 and 2,322.82

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Solution

The fourth proportional to 3,894.76, 5,374.92 and 2,322.82 is: 3,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.76 : 5,374.92 = 2,322.82 : x
  2. Step 2: Convert to fraction form
    3,894.76/5,374.92 = 2,322.82/x
  3. Step 3: Cross multiply
    3,894.76x = 5,374.92 × 2,322.82
  4. Step 4: Simplify right side
    3,894.76x = 12,484,971.67
  5. Step 5: Solve for x
    x = 12,484,971.67/3,894.76
  6. Step 6: Final answer
    x = 3,205.58

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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.