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Finding the Fourth Proportional to 3,184, 4,774.26 and 1,103.82

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Solution

The fourth proportional to 3,184, 4,774.26 and 1,103.82 is: 1,655.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184 : 4,774.26 = 1,103.82 : x
  2. Step 2: Convert to fraction form
    3,184/4,774.26 = 1,103.82/x
  3. Step 3: Cross multiply
    3,184x = 4,774.26 × 1,103.82
  4. Step 4: Simplify right side
    3,184x = 5,269,923.67
  5. Step 5: Solve for x
    x = 5,269,923.67/3,184
  6. Step 6: Final answer
    x = 1,655.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.