Home / 2,021.00-2,788.95-1,136.80

Finding the Fourth Proportional to 2,021.00, 2,788.95 and 1,136.80

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Solution

The fourth proportional to 2,021.00, 2,788.95 and 1,136.80 is: 1,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.00 : 2,788.95 = 1,136.80 : x
  2. Step 2: Convert to fraction form
    2,021.00/2,788.95 = 1,136.80/x
  3. Step 3: Cross multiply
    2,021.00x = 2,788.95 × 1,136.80
  4. Step 4: Simplify right side
    2,021.00x = 3,170,478.36
  5. Step 5: Solve for x
    x = 3,170,478.36/2,021.00
  6. Step 6: Final answer
    x = 1,568.77

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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.