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Finding the Fourth Proportional to 3,954.61, 5,919.05 and 2,914.20

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Solution

The fourth proportional to 3,954.61, 5,919.05 and 2,914.20 is: 4,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.61 : 5,919.05 = 2,914.20 : x
  2. Step 2: Convert to fraction form
    3,954.61/5,919.05 = 2,914.20/x
  3. Step 3: Cross multiply
    3,954.61x = 5,919.05 × 2,914.20
  4. Step 4: Simplify right side
    3,954.61x = 17,249,295.51
  5. Step 5: Solve for x
    x = 17,249,295.51/3,954.61
  6. Step 6: Final answer
    x = 4,361.82

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1.5x scale

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.