Home / 3,051.21-4,211.42-2,167.30

Finding the Fourth Proportional to 3,051.21, 4,211.42 and 2,167.30

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Solution

The fourth proportional to 3,051.21, 4,211.42 and 2,167.30 is: 2,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.21 : 4,211.42 = 2,167.30 : x
  2. Step 2: Convert to fraction form
    3,051.21/4,211.42 = 2,167.30/x
  3. Step 3: Cross multiply
    3,051.21x = 4,211.42 × 2,167.30
  4. Step 4: Simplify right side
    3,051.21x = 9,127,410.57
  5. Step 5: Solve for x
    x = 9,127,410.57/3,051.21
  6. Step 6: Final answer
    x = 2,991.41

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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.