Home / 2,172.90-3,265.38-2,160.93

Finding the Fourth Proportional to 2,172.90, 3,265.38 and 2,160.93

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Solution

The fourth proportional to 2,172.90, 3,265.38 and 2,160.93 is: 3,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.90 : 3,265.38 = 2,160.93 : x
  2. Step 2: Convert to fraction form
    2,172.90/3,265.38 = 2,160.93/x
  3. Step 3: Cross multiply
    2,172.90x = 3,265.38 × 2,160.93
  4. Step 4: Simplify right side
    2,172.90x = 7,056,257.60
  5. Step 5: Solve for x
    x = 7,056,257.60/2,172.90
  6. Step 6: Final answer
    x = 3,247.39

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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.