Home / 3,020.90-4,168.97-2,136.98

Finding the Fourth Proportional to 3,020.90, 4,168.97 and 2,136.98

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Solution

The fourth proportional to 3,020.90, 4,168.97 and 2,136.98 is: 2,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.90 : 4,168.97 = 2,136.98 : x
  2. Step 2: Convert to fraction form
    3,020.90/4,168.97 = 2,136.98/x
  3. Step 3: Cross multiply
    3,020.90x = 4,168.97 × 2,136.98
  4. Step 4: Simplify right side
    3,020.90x = 8,909,013.26
  5. Step 5: Solve for x
    x = 8,909,013.26/3,020.90
  6. Step 6: Final answer
    x = 2,949.13

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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.