Home / 2,857.09-4,279.41-1,758.13

Finding the Fourth Proportional to 2,857.09, 4,279.41 and 1,758.13

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Solution

The fourth proportional to 2,857.09, 4,279.41 and 1,758.13 is: 2,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.09 : 4,279.41 = 1,758.13 : x
  2. Step 2: Convert to fraction form
    2,857.09/4,279.41 = 1,758.13/x
  3. Step 3: Cross multiply
    2,857.09x = 4,279.41 × 1,758.13
  4. Step 4: Simplify right side
    2,857.09x = 7,523,759.10
  5. Step 5: Solve for x
    x = 7,523,759.10/2,857.09
  6. Step 6: Final answer
    x = 2,633.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.