Home / 1,790.25-2,469.55-1,126.86

Finding the Fourth Proportional to 1,790.25, 2,469.55 and 1,126.86

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Solution

The fourth proportional to 1,790.25, 2,469.55 and 1,126.86 is: 1,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.25 : 2,469.55 = 1,126.86 : x
  2. Step 2: Convert to fraction form
    1,790.25/2,469.55 = 1,126.86/x
  3. Step 3: Cross multiply
    1,790.25x = 2,469.55 × 1,126.86
  4. Step 4: Simplify right side
    1,790.25x = 2,782,837.11
  5. Step 5: Solve for x
    x = 2,782,837.11/1,790.25
  6. Step 6: Final answer
    x = 1,554.44

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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.