Home / 2,021.94-2,790.08-1,137.68

Finding the Fourth Proportional to 2,021.94, 2,790.08 and 1,137.68

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Solution

The fourth proportional to 2,021.94, 2,790.08 and 1,137.68 is: 1,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.94 : 2,790.08 = 1,137.68 : x
  2. Step 2: Convert to fraction form
    2,021.94/2,790.08 = 1,137.68/x
  3. Step 3: Cross multiply
    2,021.94x = 2,790.08 × 1,137.68
  4. Step 4: Simplify right side
    2,021.94x = 3,174,218.21
  5. Step 5: Solve for x
    x = 3,174,218.21/2,021.94
  6. Step 6: Final answer
    x = 1,569.89

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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.