Home / 4,200.82-6,302.16-1,279.35

Finding the Fourth Proportional to 4,200.82, 6,302.16 and 1,279.35

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Solution

The fourth proportional to 4,200.82, 6,302.16 and 1,279.35 is: 1,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.82 : 6,302.16 = 1,279.35 : x
  2. Step 2: Convert to fraction form
    4,200.82/6,302.16 = 1,279.35/x
  3. Step 3: Cross multiply
    4,200.82x = 6,302.16 × 1,279.35
  4. Step 4: Simplify right side
    4,200.82x = 8,062,636.89
  5. Step 5: Solve for x
    x = 8,062,636.89/4,200.82
  6. Step 6: Final answer
    x = 1,919.30

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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.