Home / 4,208.18-6,312.27-1,286.49

Finding the Fourth Proportional to 4,208.18, 6,312.27 and 1,286.49

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Solution

The fourth proportional to 4,208.18, 6,312.27 and 1,286.49 is: 1,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.18 : 6,312.27 = 1,286.49 : x
  2. Step 2: Convert to fraction form
    4,208.18/6,312.27 = 1,286.49/x
  3. Step 3: Cross multiply
    4,208.18x = 6,312.27 × 1,286.49
  4. Step 4: Simplify right side
    4,208.18x = 8,120,647.30
  5. Step 5: Solve for x
    x = 8,120,647.30/4,208.18
  6. Step 6: Final answer
    x = 1,929.73

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Double scale
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Similar ratio
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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.