Home / 3,554.82-4,905.08-2,138.16

Finding the Fourth Proportional to 3,554.82, 4,905.08 and 2,138.16

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Solution

The fourth proportional to 3,554.82, 4,905.08 and 2,138.16 is: 2,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.82 : 4,905.08 = 2,138.16 : x
  2. Step 2: Convert to fraction form
    3,554.82/4,905.08 = 2,138.16/x
  3. Step 3: Cross multiply
    3,554.82x = 4,905.08 × 2,138.16
  4. Step 4: Simplify right side
    3,554.82x = 10,487,845.85
  5. Step 5: Solve for x
    x = 10,487,845.85/3,554.82
  6. Step 6: Final answer
    x = 2,950.32

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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.