Home / 2,136.43-2,928.30-2,127.09

Finding the Fourth Proportional to 2,136.43, 2,928.30 and 2,127.09

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Solution

The fourth proportional to 2,136.43, 2,928.30 and 2,127.09 is: 2,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.43 : 2,928.30 = 2,127.09 : x
  2. Step 2: Convert to fraction form
    2,136.43/2,928.30 = 2,127.09/x
  3. Step 3: Cross multiply
    2,136.43x = 2,928.30 × 2,127.09
  4. Step 4: Simplify right side
    2,136.43x = 6,228,747.91
  5. Step 5: Solve for x
    x = 6,228,747.91/2,136.43
  6. Step 6: Final answer
    x = 2,915.50

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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.