Home / 2,136.26-2,949.38-1,637.94

Finding the Fourth Proportional to 2,136.26, 2,949.38 and 1,637.94

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Solution

The fourth proportional to 2,136.26, 2,949.38 and 1,637.94 is: 2,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.26 : 2,949.38 = 1,637.94 : x
  2. Step 2: Convert to fraction form
    2,136.26/2,949.38 = 1,637.94/x
  3. Step 3: Cross multiply
    2,136.26x = 2,949.38 × 1,637.94
  4. Step 4: Simplify right side
    2,136.26x = 4,830,907.48
  5. Step 5: Solve for x
    x = 4,830,907.48/2,136.26
  6. Step 6: Final answer
    x = 2,261.39

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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.