Home / 2,279.22-3,416.70-1,237.70

Finding the Fourth Proportional to 2,279.22, 3,416.70 and 1,237.70

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Solution

The fourth proportional to 2,279.22, 3,416.70 and 1,237.70 is: 1,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.22 : 3,416.70 = 1,237.70 : x
  2. Step 2: Convert to fraction form
    2,279.22/3,416.70 = 1,237.70/x
  3. Step 3: Cross multiply
    2,279.22x = 3,416.70 × 1,237.70
  4. Step 4: Simplify right side
    2,279.22x = 4,228,849.59
  5. Step 5: Solve for x
    x = 4,228,849.59/2,279.22
  6. Step 6: Final answer
    x = 1,855.39

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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.