Home / 3,551.80-5,327.70-2,169.40

Finding the Fourth Proportional to 3,551.80, 5,327.70 and 2,169.40

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Solution

The fourth proportional to 3,551.80, 5,327.70 and 2,169.40 is: 3,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.80 : 5,327.70 = 2,169.40 : x
  2. Step 2: Convert to fraction form
    3,551.80/5,327.70 = 2,169.40/x
  3. Step 3: Cross multiply
    3,551.80x = 5,327.70 × 2,169.40
  4. Step 4: Simplify right side
    3,551.80x = 11,557,912.38
  5. Step 5: Solve for x
    x = 11,557,912.38/3,551.80
  6. Step 6: Final answer
    x = 3,254.10

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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.