Home / 2,136.32-2,922.76-2,127.09

Finding the Fourth Proportional to 2,136.32, 2,922.76 and 2,127.09

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Solution

The fourth proportional to 2,136.32, 2,922.76 and 2,127.09 is: 2,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.32 : 2,922.76 = 2,127.09 : x
  2. Step 2: Convert to fraction form
    2,136.32/2,922.76 = 2,127.09/x
  3. Step 3: Cross multiply
    2,136.32x = 2,922.76 × 2,127.09
  4. Step 4: Simplify right side
    2,136.32x = 6,216,973.57
  5. Step 5: Solve for x
    x = 6,216,973.57/2,136.32
  6. Step 6: Final answer
    x = 2,910.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.