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Finding the Fourth Proportional to 3,361.08, 4,638.22 and 1,868.95

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Solution

The fourth proportional to 3,361.08, 4,638.22 and 1,868.95 is: 2,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.08 : 4,638.22 = 1,868.95 : x
  2. Step 2: Convert to fraction form
    3,361.08/4,638.22 = 1,868.95/x
  3. Step 3: Cross multiply
    3,361.08x = 4,638.22 × 1,868.95
  4. Step 4: Simplify right side
    3,361.08x = 8,668,585.00
  5. Step 5: Solve for x
    x = 8,668,585.00/3,361.08
  6. Step 6: Final answer
    x = 2,579.11

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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.