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Finding the Fourth Proportional to 3,646, 5,493.84 and 3,248.18

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Solution

The fourth proportional to 3,646, 5,493.84 and 3,248.18 is: 4,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646 : 5,493.84 = 3,248.18 : x
  2. Step 2: Convert to fraction form
    3,646/5,493.84 = 3,248.18/x
  3. Step 3: Cross multiply
    3,646x = 5,493.84 × 3,248.18
  4. Step 4: Simplify right side
    3,646x = 17,844,981.21
  5. Step 5: Solve for x
    x = 17,844,981.21/3,646
  6. Step 6: Final answer
    x = 4,894.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.