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Finding the Fourth Proportional to 3,678.42, 5,073.51 and 2,334.42

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Solution

The fourth proportional to 3,678.42, 5,073.51 and 2,334.42 is: 3,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.42 : 5,073.51 = 2,334.42 : x
  2. Step 2: Convert to fraction form
    3,678.42/5,073.51 = 2,334.42/x
  3. Step 3: Cross multiply
    3,678.42x = 5,073.51 × 2,334.42
  4. Step 4: Simplify right side
    3,678.42x = 11,843,703.21
  5. Step 5: Solve for x
    x = 11,843,703.21/3,678.42
  6. Step 6: Final answer
    x = 3,219.78

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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.