Home / 4,279.09-6,418.91-1,813.59

Finding the Fourth Proportional to 4,279.09, 6,418.91 and 1,813.59

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Solution

The fourth proportional to 4,279.09, 6,418.91 and 1,813.59 is: 2,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.09 : 6,418.91 = 1,813.59 : x
  2. Step 2: Convert to fraction form
    4,279.09/6,418.91 = 1,813.59/x
  3. Step 3: Cross multiply
    4,279.09x = 6,418.91 × 1,813.59
  4. Step 4: Simplify right side
    4,279.09x = 11,641,270.99
  5. Step 5: Solve for x
    x = 11,641,270.99/4,279.09
  6. Step 6: Final answer
    x = 2,720.50

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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.