Home / 4,200.75-6,302.07-1,279.29

Finding the Fourth Proportional to 4,200.75, 6,302.07 and 1,279.29

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Solution

The fourth proportional to 4,200.75, 6,302.07 and 1,279.29 is: 1,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.75 : 6,302.07 = 1,279.29 : x
  2. Step 2: Convert to fraction form
    4,200.75/6,302.07 = 1,279.29/x
  3. Step 3: Cross multiply
    4,200.75x = 6,302.07 × 1,279.29
  4. Step 4: Simplify right side
    4,200.75x = 8,062,137.22
  5. Step 5: Solve for x
    x = 8,062,137.22/4,200.75
  6. Step 6: Final answer
    x = 1,919.21

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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.